Page 9 of Northern Tool & Specialty Catalog by Northern Auto Parts

Carburetor Products www.northernautoparts.com 1-866-582-0956 9 Billet Metering Blocks Race-Oriented Calibration, Emulsion Still using 1950s technology? Upgrade your carburetor with PROFORM's new race-oriented billet metering blocks. Each unit is CNC machined from solid billet aluminum for added strength and durability and features changeable idle feed restriction, 4 emulsions for more aggressive tuning, and additional racing application upgrades. 67150C Race-Oriented Calibration Billet Metering Block . . . . . . . . . . . . . . . . . . . . . . . . . . .$73.17 Standard Replacement Series Primary metering block for all 2300, 4150, 4160 models except carburetors with an accelerator pump transfer tube or reverse idle mixture system. Uses standard fuel bowl and metering block gaskets. Timed spark or ported vacuum tube in original location. Improved throttle response over stock universal performance carburetor metering block. 67166C Standard Replacement Series Billet Metering Block . . . . . . . . . . . . . . . . . . . . . . . .$75.83 Secondary Conversion Series for Single Inlet Carburetors For single inlet vacuum secondary carburetors to replace the original metering plate with a billet metering block. Kit includes longer fuel bowl screw, longer transfer tube and all necessary gaskets, seals, etc. 67164C Secondary Conversion Single Inlet Series Billet Metering Block . . . . . . . . . . . . . . . . .$75.83 Secondary Conversion Series for Dual Inlet Carburetors For dual inlet vacuum secondary carburetors to replace the original metering plate with a billet metering block. Kit includes all necessary gaskets for conversion. NOTE: This conversion will require a longer dual feed line (See P/N 66636 on page 27!). 67163C Secondary Conversion Dual Inlet Series Billet Metering Block . . . . . . . . . . . . . . . . .$75.83 Double Pumper Conversion Kit Upgrade your Double Pumper with race-ready billet metering blocks! Primary block retains the original vacuum provisions. Secondary block has no power valve provision to fit the latest generation of carburetors. Kit includes necessary gaskets for conversion. These blocks have a four corner idle system provision (you must have the correct throttle body for the four corner idle system to work). 67165C Double Pumper Billet Metering Block Conversion Kit . . . . . . . . . . . . . . . . .$142.50 All metering blocks sold 1 per package. Billet Jet Plate Lightweight jet storage plate holds up to 22 pairs of jets. Never lose or damage another jet again! A must-have for the carburetor tuner. Jet plate does not come with jets. 67115C Billet Jet Plate . . . . . . . . . . . . . . . . .$16.42 Billet Metering Plate Conversion Kit Now you can finally tune your rear jets! Upgrade your 4160 series 750 CFM carburetor (center hung float) with PROFORMs billet secondary metering plate conversion kit. Easily change your secondary jets for tunability and better horsepower gains. Each kit comes with a purple anodized billet metering plate, a metering plate/fuel bowl gasket and nylon fuel bowl screw gaskets. 67146 Billet Secondary Metering Plate Conversion Kit . . . . . . . . . . . . . . . . . . . .$49.92 Throttle Shaft Conversion Kits A. B. Upgrade your PROFORM or Holley carburetors (up to 1 3/4" throttle bores) to achieve higher air flow by reducing the size of the throttle shaft. Each kit includes button head (Torx) throttle plate screws, universal lever, and slip link secondary activation system. The High-Flow kit includes stainless steel button head screws. A. 67243 Throttle Shaft Conversion Kit . . . . . . . .$53.25 B. 67244 High-Flow Throttle Shaft Conversion Kit $49.58 Carburetor Tuning Accessories Non-Stick Gasket Kit 2 non-stick fuel bowl and 2 non-stick metering block gaskets. 67220 Gasket Kit . . . . . . . . . . . . . . . . . . . . .$14.58 Gas Jet Kits Precision manufactured to exacting flow for better tunability. Each kit comes with 2 jets. Comes with billet jet plate. 67226 Jet Kit, No. 70 No. 80 . . . . . . . . . . .$41.58 67227 Jet Kit, No. 80 No. 90 . . . . . . . . . . .$41.58 67228 Jet Kit, No. 90 No. 100 . . . . . . . . . .$41.58 Power Valves Increase fuel flow and quicker response time resulting in precise calibration and predictability. Each power valve is hand tested in the U.S.A. to ensure quality. 67229 Power Valve No. 2.5 . . . . . . . . . . . . . .$7.28 67232 Power Valve No. 3.5 . . . . . . . . . . . . . .$7.28 67233 Power Valve No. 4.5 . . . . . . . . . . . . . .$7.28 67234 Power Valve No. 6.5 . . . . . . . . . . . . . .$7.28 Needle and Seats Assemblies Precision machined for exacting fuel flow with larger stem base on the needle for accurate response to float arm movement. For gasoline applications with Viton tip. 67238 .0.110 adjustable . . . . . . . . . . . . . . . .$9.97 67239 .0.120 adjustable . . . . . . . . . . . . . . .$13.30 67240 .0.130 adjustable . . . . . . . . . . . . . . .$13.75 AN Fuel Inlet Fittings Kit Extended length fittings that can be easily tightened for an exact seal without damaging the fuel bowl. Each kit comes with 1 inlet fitting. 67241 # 6 AN Inlet, 7/8"-20 fuel bowl . . . . . .$13.75 67242 # 8 AN Inlet, 7/8"-20 fuel bowl . . . . . .$17.80 Idle Feed Restriction Kits For PROFORM carburetors and PROFORM metering blocks, each kit comes with 4 of each installed in a billet plate threaded to 6-32. 67247 0.029" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 67248 0.031" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 67249 0.033" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 67250 0.035" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 67251 0.037" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 67252 0.039" . . . . . . . . . . . . . . . . . . . . . . . .$6.42 Adjustable Vacuum Secondary Housing Assembly A complete bolt-on for any vacuum secondary carburetor. A simple one-screw adjustment varies initial point and opening rate. 67235 Adj Vac Secondary Housing . . . . . . . .$43.08 Replacement Secondary Diaphragm Fits all PROFORM carburetors and all Holley vacuum secondary carburetors except six pack, 3 bbl, and early Mopar applications. 67236 Replacement Secondary Diaphragm . . .$7.75 Performance Rebuild Kits Performance rebuild kits include machined needle and seat assemblies, accelerator pump diaphragms, and non-stick precision die-cut gaskets with nylon inlet nut and bowl screw gaskets. Can be used with any racing gasoline. 67221 Fits Holley vacuum secondary 4 bbl, 450, 550, 600, 750, 780 CFM (includes early versions of the list 3310 as well as universal carbs upgraded with se ondary metering block)..........................$28.25 67222 Fits Holley Double-Pumper carbs 600 850 CFM $41.58 67223 Fits PROFORM 650 750 CFM as well as the Holley HP Series of the same size...........$41.58 67224 Fits PROFORM 850 950 CFM as well as the Holley HP Series of the same size...........$41.58 PROFORM Trackside Carb Spacer Kits Easily optimize your flow rates with the new PROFORM modular 1" carb spacer kit! Each kit comes with one frame and 3 popular inserts: open, 4-hole, and tapered 4-hole. Various engine combinations have various fuel and air distribution requirements for maximum performance. Lightweight heat-resistant phenolic. 67160C Carb spacer frame with open, 4-hole, and 4-hole tapered inserts ..................$83.17 Carburetor Adapters Precision machined and final-finished for increased flatness and maximum sealing. Includes all necessary hardware. 66251 Adapt any 4 Bbl. carb to any 4 Bbl. manifold. ..............................$23.98 66252 Adapt any 4 Bbl. carb to any 2 Bbl. manifold 2 Bbl. manifold to 4 Bbl. carb. ..........$23.98 66253 Adapt Holley AFB 4 Bbl. carb to Quadrajet 4 Bbl. manifold...................$23.98 Air Bleed Tuning Kit PROFORM air bleed tuning kits include 4 each of 11 air bleeds. Each kit comes in a handy plastic storage container. 67245 Air Bleed Tuning Kit, High Speed System No. 25 35..........................................$46.63 67246 Air Bleed Tuning Kit, Idle Air Bleed System No. 65 75..........................................$46.63 NEW! NEW! NEW! NEW!

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