Holley Performance Products Inc in Avenger Systems & Carburetion by Holley Performance Products, Inc.

Catalog: Avenger Systems & Carburetion
Company/Brand: Holley Performance Products, Inc.

holley performance products inc in Avenger Systems & Carburetion by Holley Performance Products, Inc.

section street avengertm pure street hot street wild street carbureted crate engines efi crate engines truck avengertm pure off road avenger warranty page 8,9 10,11 12,13 14,15 16,17 18,19 20 7

hydraulic roller camshaft kit does not include new lifters 7 available hand-polished p ... to variables in engine configuration holley always recommends checking for correct ... clearance to ensure maximum engine performance and durability 18 see hooker or ... horsepower use 0-80670 carburetor 8 www.holley.com ...

street avengertm engine systems stage 2 valve train stage 3 heads nos accessories camshaft kit timing chain cylinder heads nitrous kit water pump fuel line fuel filter valve covers valve cover breather 80350lk 54760lun6 547426 547426 54778lun6 55001lun6 80454lk 80454lk 93099 n/a n/a n/a 93094 n/a 93112 93112 300-552-114,17 300-552-114,17 300-552-114,17 300-552-114,17 n/a n/a 300-55415,17 300-56015,17 05001nos 05001nos 05153nos 05153nos 05176nos 05177nos 05001nos 05001nos 82407 n/a n/a n/a n/a n/a 82428 82428 34-150 34-150 n/a n/a n/a n/a 34-150 34-150 162-523 162-523 n/a n/a n/a n/a 162-523 162-523 ...

hydraulic roller camshaft kit does not include new lifters 7 available hand-polished p ... to variables in engine configuration holley always recommends checking for correct ... clearance to ensure maximum engine performance and durability 18see hooker or flowtech ... system applications 19 lifters not included 20 early-model with factory hydraulic ... use 0-80870 carburetor 10 www.holley.com ...

street avengertm engine systems stage 2 valve train stage 3 heads nos accessories camshaft kit timing chain cylinder heads nitrous kit water pump fuel line fuel filter valve covers valve cover breather 30110lk 54743lun6 54779lun6 54779lun6 54779lun6 55003lun6 00026lk 00026lk 93099 n/a n/a n/a 93094 n/a 93112 93112 300-552-114,17 300-552-114,17 300-552-114,17 300-552-114,17 n/a n/a 300-55415,17 300-56015,17 05001nos 05001nos 05153nos 05153nos 05176nos 05177nos 05001nos 05001nos 82407 n/a n/a n/a n/a n/a 82428 82428 34-150 34-150 n/a n/a n/a n/a 34-150 34-150 162-523 162-523 n/a n/a n/a n/a 162-523 ...

hydraulic roller camshaft kit does not include new lifters 7 available hand-polished p ... to variables in engine configuration holley always recommends checking for correct ... clearance to ensure maximum engine performance and durability 18 see hooker or ... system applications 19 lifters not included 20 early-model with factory hydraulic ... p/n 300-552-1 cylinder heads 12 www.holley.com ...

are a great shortcut to outstanding performance and reliability for your street machine ... timing cover installation 14 www.holley.com ...

crate engines are a great way to get performance improved drivability and reliability ... than ram jet electronics call holley tech service for details 25 throttle- ... favorite 4-bbl intake manifold with a holley 4150 carburetor pad 16 www.holley.com ...

hydraulic roller camshaft kit does not include new lifters 7 available hand-polished p ... to variables in engine configuration holley always recommends checking for correct ... clearance to ensure maximum engine performance and durability 18 see hooker or ... hydraulic flat-tappet camshaft 18 www.holley.com ...

avengertm truck avengertm warranty holley street avengertm truck avengertm low- ... avengertm limited lifetime warranty holley performance products warrants its ... holley street avengertm truck avengertm ... repair labor after a period of one year holley will charge standard rates for repair ... labor for any holley street avengertm carburetor used in any ... warranty on parts and labor for any holley truck avengertm carburetor used in any ... warranty on parts and labor warranty performance will be initiated by returning the ... defective product to holley performance products with the original dated purchase ... purchaser is to call toll free the holley factory service number at 1-866- ... details and shipping instructions holley performance products does not warrant ...

lo-rider avengertm street performance traditional double pumperstm ... marine 2 bbl marine 4 bbl performance marine 4500 hp dominator® service/ ...

street the drag strip or circle track holley offers a number of different ... flange manifold and vice versa a high performance street or street/strip application is ... be factored by this percentage 22 www.holley.com ...

the next decision to face most of the holley universal performance carburetors come ... choke operation with the proper holley kit and vice versa most automatic ... of bracket p/n 20-7 if it s not already included with the carburetor those running the ...

of your engine a an ordinary low-performance engine has a volumetric efficiency of ... about 80 at maximum torque b a high-performance engine has a volumetric efficiency of ... c.f.m than normally aspirated engines holley offers a new line of supercharger ... 200 4000 6000 d ci d 2000 rpm 24 www.holley.com 8000 ...

secondary carburetor for high performance engines a carburetor with mechanical ... carburetor nearly every time from holley carburetors manifolds by mike urich ... rpm column a 2.select engine size cubic inches in column b 3.draw line between ...

technicalinform at i o n inside your holley carburetor the carburetor is quite ... from entering the carburetor holley performance carburetors are equipped with a fuel ... adjustable fuel inlet valve 26 www.holley.com ...

air/fuel mixture is discharged most holley street performance o.e muscle car ...

plug readings manifold vacuum will increase the closer you get to ideal jetting it ... that the carburetor is jetted rich holley jets are number-stamped on their side ... showing idle tube in main well 28 www.holley.com ...

bet that the pump nozzle size should be increased a backfire lean condition on ... in this case a smaller size is required holley accelerator pump nozzles are stamped ... be further tailored with the pump cam holley offers an assortment of different pump ... profiles that are available under holley p/n 20-12 switching cams will directly ... pump conversion kit is available under holley p/n 20-11 when maximum pump capacity is ...

heavy load or full power situations holley carburetors utilize a vacuum operated ... s operation to your specific needs each holley power valve is stamped with a number to ... below an accurate vacuum gauge such as holley p/n 26-501 should be used when ... vacuum observed most of the popular holley street legal and street performance ... carburetors incorporate a power valve blow-out protection ... the truth about power valves used with holley carburetors there still seems to be a ... lot of misconception about holley carburetors blowing power valves ... nothing could be further from the truth holley performance carburetors built since ... due to an engine backfire 30 www.holley.com ...

starts and cold drive-away conditions holley carburetors with chokes will come ... a manual electric or hot air choke all holley square flange carburetors originally ... choke the secondary system of a holley four barrel carburetor can be either ... rotated open about 40 degrees special holley kits are also available which will ... more quickly a spring assortment kit holley p/n 2013 is available to help you ... your application a quick change kit holley p/n 20-59 is also available for fast ... to open prematurely will hinder performance and may cause an engine backfire the ...

float adjustment are provided for with holley performance carburetors depending on ... note the float adjustment feature on holley carburetors cannot cure a poor running ... be enough to bring you into spec 32 www.holley.com ...

street/strip off road street performance carburetor quick reference carburetor 0 ...

2-bbl street carburetors stock performance replacement for 2-bbl street ... controlled motor vehicles or 34 www.holley.com ...

overadjustment clear sight plugs included to initially set fuel level without the ... fuel control and maintain the classic holley look single fuel inlet banjo fitting ... easy installation and great off-road performance h.v.s annular boosters provide an ultra ... high vacuum signal for incredible low mid range throttle response and ... page 2 for symbol explanation 36 www.holley.com ...

specifically for optimal street performance · tuneable from mild to wild · up to 6 ... ·tuneable to provide the ultimate in performance ·100 wet flowed by skilled craftsmen ... a/c or modulator · no trouble caps included · · · · no troubletm electric choke · ... pressure levels · clear sight plugs included for safe initial float level adjustment ... inlet filters · cleaner safer street performance · used in primary and secondary fuel ...

l o rider av enger tm street performance lo-rider avengertm carburetors ... fuel control and maintain the classic holley look single fuel inlet banjo fitting ... provide an ultra high vacuum signal for incredible low mid range throttle response and ... for easy installation and great performance industry first limited lifetime ... page 2 for symbol explanation 38 www.holley.com ...

street performance traditional carburetors developed for ... for street drivability street performance carburetors 390 cfm four barrel ... floats · calibrated for small cubic inch v8 engines · ford a/t kickdown · hot ... air choke · includes single inlet banjo fitting part 0-1848 ...

carburetion street performance street performance traditional carburetors a 600 cfm four ... cable/return spring bracket kit street performance 34-2 center hung float bowl kit · ... 2 full manifold 1 timed vacuum 17-6 · includes banjo single feed push on style fuel ... parts kits p/n description street performance carburetors 600 cfm four barrel ... cable/return spring bracket kit 40 www.holley.com ...

street performance traditional carburetors 750 cfm four ... -4150 conversion shiny finish street performance carburetors 750 cfm four barrel ...

acceleration awesome tireturning performance for lightweight vehicles and vehicles ... there was no 4-barrel option 42 www.holley.com ...

page 2 for symbol explanation 44 www.holley.com ...

safe and reliable horsepower for high performance race engines features · 100 wet-flow ...

page 2 for symbol explanation 46 www.holley.com ...

bores offer balanced air flow for increased horsepower screw-in air bleeds · ... page 2 for symbol explanation 48 www.holley.com ...

to a 750 cfm hp main body for increased horsepower torque and airflow features ... and associated hardware of standard holley double pumper · reduces turbulence and ... -calibrated at the factory for optimum performance and drivability on a wide variety of ... applications · includes assembled main body with adjustable ...

w ne 4150 hp carburetors popular holley calibrations · for race winning out-of- ... the-box performance dual inlet fuel bowls · built-in ... controlled motor vehicles 50 www.holley.com ...

controlled motor vehicles 52 www.holley.com ...

tunability of metering w ne popular holley calibrations · for race winning out-of- ... the-box performance 100 wet flow tested calibrated ...

provisions · engineered to improve performance · bolt-on installation · square and ... is not recommended or advised that the holley street legal carburetors which are ... lean-burn engines or hd trucks 54 www.holley.com ...

is not recommended or advised that the holley street legal carburetors which are ... lean-burn engines or hd trucks 56 www.holley.com ...

carburetion 4-bbl marine marine 4-bbl performance carburetors 450 cfm four barrel ... kits p/n description renew kit 58 www.holley.com ...

marine 4-bbl performance carburetors 600 cfm four barrel ... cfm four barrel features · model 4150 · performance calibration · mechanical secondaries · ...

carburetion 4-bbl marine marine 4-bbl performance carburetors 650 cfm four barrel ... cfm four barrel features · model 4150 · performance calibration · mechanical secondaries · ... quick change spring kit 60 www.holley.com ...

marine 4-bbl performance carburetors 800 cfm four barrel ...

tuning manuals learn more about holley fuel system products ·tuning · ... · selection · servicing high performance engine assembly guide 36-171 36-175 by ... -jection® 4 fuel injection systems from holley includes a complete section on ... dominator® carburetors holley double pumper and track tuning 36-175 ... supertuning holley carburetors carburetor service parts ... by alex walordy a guide to modifying holley carburetors offers detailed information ... bracket racing oval track and street performance includes troubleshooting and assembly ... tips fully illustrated 68 pages 36-155 holley carburetors manual 36-136 36-155 by ... to proper selection and modification of holley carburetors for competition includes ... modifications tips on rebuilding holley two and four barrel models illustrated ...

exploded illustrations of current holley carburetor models complete list of ... professional service technician 36-51-7 holley carburetors manifolds fuel injection ... /4011 4150/4160/4180 4165/4175 and 4500 performance carburetors includes holley pro-jection ... track racing 224 pages 36-73 36-51-7 holley carburetor numerical listing contains a ... complete list of all holley carburetors including automotive farm ... from 1957 to the present 36-168 holley model 4150 4160 carburetor handbook by ... m urich includes application recommendations tuning and ... repair 36-133 holley tech everything you need to know about ... custom tuning and troubleshooting the holley 4150 hp and dominator hp carburetors ... includes information on machining base plates ...

12 6 2 3 4 1 5 13 22 23 9 8 14 64 www.holley.com ...

model split dominators 108-115 66 www.holley.com ...

plug gasket quick change part all holley quick change fuel bowls 108-74 part ... -2-20 108-97 fuel bowl screw gasket all holley fuel bowl screws 20/pkg 108-61 part ...

2/pkg 108-100 108-35-2 108-100 68 www.holley.com ...

have been selected to cover popular holley four barrels each contains the ... of metering plate gaskets used in holley 4160 and 4175 carburetors they are also ... throttles 2/pkg 108-13-2 70 www.holley.com ...

kit® · · · · · · · one kit services all holley performance carburetors uses genuine ... holley quality service parts extra parts ... provided for performance tuning explicit step-by-step ... instructions includes detailed tuning guide packaging serves ... kits® · · · · · · five kits service all holley performance carburetors uses genuine ... holley quality service parts explicit step-by- ... step instructions includes detailed tuning guide packaging serves ... ® · · · · · · eleven kits service all holley performance carburetors uses genuine ... holley quality service parts explicit step-by- ... step instructions includes detailed tuning guide packaging serves ...

fastkit ® renew kit® part when your holley performance carburetor is due for a ... performance rebuild it s time to get the holley ... trick kit® p/n 37-933 this holley trick kit® contains all the parts that ... a complete carburetor rebuild on your holley vacuum secondary or double pump ... that are required to accomplish a real performance tune these include accelerator pump ... and a detailed tuning guide is also included the packaging serves as a handy parts ... tray this holley trick kit® has it all r1848-1 r1849 ... r84779 r84780 r84781 r87448 r89834 holley trick kit® 37-933 holley fast kits® ... service parts accessories five 5 holley fast kits® cover the entire spectrum of ... holley performance carburetors holley fast kits® include only genuine holley ...

holley renew kits® purchase a holley renew kit® next time a carburetor ... you ll be assured of using only genuine holley factory service parts this really is ... the only sure way of knowing that your holley carburetor will be brought back to ... new condition the renew kit® package includes new gaskets o-rings pump diaphragms ... for a professional rebuild are included leave the guessing to others be ... assured with holley brand renew kits 37-119 r1848-1 r1849 ...

rebuild kits are available for all holley marine carburetors as well as carter ... are necessary to restore like new performance to your marine carburetor detailed ... instructions are also included to guide you through the rebuilding ... start off the season with a quality holley renew kit® marine repair kit it s your ... carburetor service parts accessories holley renew kit 3-396 3-474 3-485 3-606 3-720 ... 3-888 3-1184 3-1445 r9011 holley marine carburetors r6105 r6105-1 r6106 ... r80340-1 r4473 r6151 r6152 r6407 r80551 holley renew kit 703-28 holley marine ... -40 703-41 3-1447 37-1539 703-1 74 www.holley.com ...

marine carb renew kits® cont d holley renew kit 703-45 703-46 703-47 703-48 ... -53 703-55 703-58 703-59 703-60 703-66 holley marine carburetors continued r80309 ... r84050 r80487 3-555 3-670 703-39 3-539 holley renew kit 3-352 3-358 3-588 3-592 ... holley renew kit 3-466 4695 6478 3213 3214 ...

standard main jets 1/4-32 unf thread holley alcohol jets are specially designed to ... sizes provided for reference only all holley jets are sized by actual flow and may ... vary from sizes above www.holley.com ...

dominator hp carburetor for maximum performance the kit includes four 4 of each air ...

i o n jet assortment kit part 36-181b holley 2-bbl and 4-bbl performance carburetors ... the holley jet assortment kit is the professional ... way to track-tune your holley carburetor for top performance this kit ... range of adjustment and tuning for most performance carburetor applications emulsion bleed ... parts accessories part 36-201b this holley jet assortment kit consists of 4 ea of ... these jets will not fit the standard holley metering block they are designed to fit ... way to keep your jets organized the holley jet holder contains twenty 20 ... plastic allows for easy viewing 78 www.holley.com ...

metering plates many holley performance carburetors use a secondary metering ... idle feed restriction hole b holley secondary metering plates main hole a ... idle hole b holley p/n part stamped hole a secondary ...

is a typical kit fuel bowls are not included and the metering block has no provision ... 34-6 34-6 34-6s 34-13 34-13s 80 www.holley.com ...

needle seat assemblies holley offers a number of needle and seat ... and seat assemblies are available from holley seat size .097 .110 .120 .130 .150 ... part viton inlet needles 6-511 most holley performance carburetors come equipped ... must be removed for this procedure all holley model 2010 2300 4010 4011 4150 4160 ...

of the power enrichment system of holley performance carburetors the power ... heavy load or full power situations holley utilizes a vacuum operated power ... to your specific requirements each holley power valve is stamped with a number to ... below an accurate vacuum gauge such as holley p/n 26-501 should be used when ... steady speed engine vacuum observed holley has a 6.5 hg power valve p/n 125-65 ... situations since 1992 many of the new holley performance carburetors built today now ... incorporate power valve blowout protection with ... and carburetors for superchargers holley carburetors that are intended for use ... no bearing on the engine load 82 www.holley.com ...

power valves single-stage includes gasket part standard flow 125-10 125- ... the power valve and is easy to install included is the proper drill bit size with stop ... installation detailed instructions are included 125-500 power valve plug and gasket 125 ... service parts accessories two-stage includes gasket part model 4160 125-206 125-207 ... circuit furthermore jet sizes must be increased to compensate for loss of the fuel ... provided by the power valve an increase of 6 to 8 jet sizes will in most cases ... power valves are not recommended for performance applications tech line 270-781-9741 83 ...

kit another great tuning kit from holley this one will allow you to tailor ... accelerator pump performance to the engine s actual requirements ... kit is for those who demand ultimate performance from their holley carburetors the ... holley 50cc accelerator pump will ... substantially increase fuel capacity over the standard 30cc ... idle or at any other rpm range this kit includes everything required for easy ... installation including new pump housing stud arm diaphragm ... and longer pump housing screws 84 www.holley.com ...

styles of nozzles are offered by holley including the following note nozzle ... sizes .040 and larger include a hollow nozzle screw straight type ... includes 2 nozzles 4 gaskets used on models ... 121-131 121-132 121-135 121-137 121-140 includes hollow pump screw 121-142 includes ... hollow pump screw 121-145 includes hollow pump screw 121-147 includes ... hollow pump screw 121-150 includes hollow pump screw hole .018 .021 .025 . ... 042 .045 .047 .050 anti-pullover style includes 1 nozzle 2 gaskets originally used on ... size .025 .028 .031 .037 .040 tube type includes 2 nozzles 4 gaskets used on models ... -25 121-28 121-31 121-35 121-37 121-40 includes hollow pump screw 121-42 includes ... hollow pump screw 121-45 includes hollow pump screw hole size .025 .028 . ... of accelerator pump hardware components including pump diaphragms pump nozzles pump cams ...

float kits floats for holley 2-bbl and 4-bbl performance carburetors ... a brass or a nitrophyl float today holley float designs are manufactured in only ... 4160 w brass center hung floats most holley performance carburetors have externally ... 3 part 116-3 float hanger hardware kit includes fuel bowl hardware for float ...

vacuum secondary operation 88 www.holley.com ...

carburetors short-style booster includes 4 boosters and 4 retaining pins 34-32 ... 34-9 part annular-style booster includes 4 boosters and retaining pins annular/ ... booster for hp-style dominator 750 cfm includes 4 boosters and 4 retaining pins annular ... -style booster for hp-style dominator includes 4 boosters and 4 retaining pins 34-32 ... service parts accessories 90 www.holley.com ...

to a handy metering correlation chart included as part of the kit one can accurately ... that you ve ever learned about a holley carburetor still applies adjust-a-jet ... block 55001 55008 adjust-a-jet kits holley carburetor models 2300 4150 4160 part ... transfer tube model 4160 carburetor includes seal main metering jet extensions pair ...

throttle blade idle setting of holley 4150 series mechanical secondary ... throttle lever stud bushing 92 www.holley.com r r stud bushing 26-103 ...

and throttle return spring installation includes dual stainless steel throttle return ... springs p/n 20-89 works on holley models 4150 and 4160 carburetors ... brackets are designed to be used with holley spread bore model 4165/4175 carburetors ... for gm p/n 2060106 can be used on many holley aftermarket carburetors when used with ... the appropriate holley solenoid bracket requires nut p/n 26- ... bracket 20-47 can be used on many holley aftermarket carburetors use with ... 20-35 throttle solenoid bracket used on holley model 4165/4175 carburetors used with ... will bolt to the throttle lever of a holley model 4165/4175 carburetor it will ... for proper shifts and kickdown action includes bolts and instructions 20-121 th-700r4 ... bracket is designed to be used only on holley model 4150 or 4160 carburetors it bolts ...

was originally released for use with holley square flange carburetors lists r7987 ... lever extension will install on any holley square flange carburetor with the ... bracket is designed for use with all holley carburetors that have the universal ... this universal bracket is designed for holley model 4160 carburetors with universal ... 20-17 universal bracket designed for holley model 4160 carburetors with universal ...

bracket is multi-adjustable to work on holley models 4150 and 4160 carburetors it ... includes a dual return spring combination that s ... to stand up to the rigors of time.the holley name is boldly engraved and provides a ... service parts accessories part fits holley p/n 20-112 billet cable bracket for ... this dashpot can be used with holley brackets p/ns 20-72 20-58 and 20-17 11- ... universal solenoid can be used with holley bracket 4150 4160 models p/ns 20-9 ... 1.25 thread size 7/8 14 26-57 96 www.holley.com ...

parts are no longer hard to find with holley parts kits available carburetor and ... installations of a new 4 bbl carburetor including mounting studs including an extra long ... or newdesign dominator hp carburetors included are 1 ea secondary linkage cams to ... and fuel bowl gaskets these are all included in a handy and very durable plastic ...

components when necessary gaskets are included to facilitate carburetor reassembly the ... following parts are included quantity description 4 each of 2 2 1 1 ... accelerator pump tuning kit 36-184b holley 2-bbl and 4-bbl performance carburetors ... of accelerator pump hardware components including pump diaphragms pump nozzles pump cams ... when necessary the following parts are included quantity description 2 each of 2 each ... controlled motor vehicles 26-105 98 www.holley.com ...

item to complete your purchase of the holley manual choke conversion kit can also be ... used on all holley manual choke carburetors like the ... is 6 feet and the control knob has the holley name prominently displayed part 45-228 ... choke cable clamp kit for use only on holley carburetor models 4010 4150 and 4160 ... air these kits can be used to convert holley carburetors which originally came ...

thermostat cap retainer kits used on holley carburetor models 2300 4150 and 4160 ... block heat 45-267 fast idle cam used on holley carburetor models 4150 and 4160 part ... fast idle cam plate chrome used on holley carburetor models 4010 4011 4150 and ... miscellaneous choke parts used on holley carburetor models 4150 and 4160 choke ... 2300 4150 4160 4010 and 4011 also for holley choke conversion kits p/ns 45-223 45- ... and 45-459 45-230 45-258 45-258 100 www.holley.com ...

marine fuel bowls 34r10935aq used on holley model 2300 two-barrel carburetors this ... of the bowl front inlet used on some holley model 4160 carburetors this primary ... of the bowl front inlet used on some holley model 4160 carburetors this primary ... 34r10918aq 34r7800-3amq used on holley model 4160 carburetors this secondary ... and seat assembly 34r7800-3amq used on holley model 4160 carburetors this primary ... polished 134-101 134-102s 102 www.holley.com ...

changing can now be a thing of the past holley makes it easy with a quick change jet ... which thread into the bowl and use the holley jet tool to remove the old jet screw in ... the plugs and you re ready to ride holley quick change jet kits come complete ... ready for installation they include the quick change fuel bowls gaskets ... a new standard of convenience from holley 34-509 features · allows jet changes ... center hung fuel bowls · complete kits including fuel bowl gaskets plugs jet removal ... tool included with primary bowls · available in ...

34-502 fuel bowl sight plug window kits holley s fuel bowl sight plug window kits will ... vent tube with angle cut 104 www.holley.com ...

26-75 part adapter fitting size 26-77 holley adapter fittings are used to help plumb ...

for 1/8 npt pressure gauge 106 www.holley.com ...

101286erl chrome fuel lines for holley 2010 2300 34-160 34-21 34-550 ...

to fit many of the high capacity performance canister-type filters includes sealing ... fuel inlet filter is brass and fits holley 4-bbl carburetors with center-hung- ... 162-500 162-523 162-506 108 www.holley.com ...

parts accessories 17-76 17-66 110 www.holley.com ...

more exact tuning 112 534-51 www.holley.com ...

while driving · dash mounting · includes sending unit · eliminates guesswork ... fuel inlet 90° elbow to attach to holley fuel lines part 26-503 26-69 26-503 ... mechanical fuel pressure gauge holley offers two 2 types of mechanical fuel ... gauges are offered in 0-15 and 0-30 psi increments and are budget priced but not short on ... liquid filled 90° elbow to attach to holley fuel line · 1 1/2 diameter · chromed ... steel case · 1/8 npt brass fitting · includes elbow fitting p/n 26-500 26-502 only ... · fits holley chromed fuel lines and fuel block 26- ... vacuum boost gauge reads 0-30 inches of vacuum and 0-15 lbs of boost fits ... gauge hole mounting hardware is included 90520 vacuum gauge features · 2 ... 1/8 npt brass fitting · hose fitting included 26-501 26-501 tech line 270-781-9741 ...