Page 2 of Intake Manifolds by Holley Performance Products, Inc.

manifolds manifold classifications tech p/n 8120 manifold classifications below is a listing of the different styles and series of manifolds offered by weiand the information listed will help you decide which manifold will suit your particular application and needs action plustm series 180° low-rise dual-plane manifold designed as a stock replacement manifold with improved power and torque characteristics the effective rpm range of this style manifold is off idle through approximately 5500 rpm carburetor mounting pads are available to accept either a stock or aftermarket carburetor stealthtm series weiand s top-of-the-line high-rise dual plane manifold combines the low-end throttle response of a 180-degree design with the top-end power you d expect of a single plane extensive dynamometer testing confirms that stealth is the ultimate dual plane on the market with a power range from 1500 through 6700 rpm best suited for engines that are equipped with aggressive camshaft profiles headers high performance ignition systems etc features square-bore carburetor pad for aftermarket 4-barrel carburetors x-celeratortm series 360° single-plane open plenum manifold designed primarily for high-performance street drag marine and oval track use with an effective rpm range of 2000 to 6500 rpm this series works best with a higher compression ratio 280° or more of cam duration and headers with 1-5/8 primary tubes being a mid to high-rpm manifold a standard transmission or an automatic transmission with a 3000 rpm stall converter is highly recommended the carburetor mounting pad is designed to accept current performance aftermarket carburetors the weiand x-celerator series is the ultimate street/strip performance manifold for single 4v applications where increased torque and power is required in the mid and high rpm ranges team gtm series manifolds are a 360° single-plane open plenum design developed for competition in drag racing oval track and performance applications the effective rpm range is 2000-8500 rpm by port matching the manifold to the cylinder heads the rpm range can usually be raised by 200-800 rpm for best results the use of headers and a performance ignition system is highly recommended the team g is the premier competition manifold for single 4v applications hi-ram ® series manifolds are used primarily in drag racing tractor/truck pulls and performance marine applications where high rpm is required the effective rpm range will be between 2,500 to 10,000 rpm depending on specific model and application the weiand hi-ram with its patented d-shaped port runners and large plenum chamber provides optimum thrust of the air/fuel mixture to the cylinder head intake ports for maximum performance in a normally aspirated competition application the weiand hi-ram series is the manifold of choice stealth ramtm series the stealth ram intake manifolds are designed with an aggressive sophisticated look for today s efi engines patterned after a tunnel ram style tuned port intake the stealth ramtm offers exceptional horsepower and torque over a conventional intake manifolds can be retro-fitted into l-98 powered vehicles with a minimum of modifications and tuning or they can be purchased complete as part of a holley commander 950tm efi system air ramtm efi series long runner style designed for the 5.0l ford and ls series families these intakes pick up where the factory left off engineered to build horsepower and torque through optimized plenum and runner designs these manifolds offer builders the ability to port match to larger heads and throttle bodies as well as withstand higher boost pressures and tapping necessary for nos nitrous nozzles street dominator® series dual plane holley dual plane street dominator manifolds are designed as stock replacement intake for increased power and torque on engines primarily designed for street and towing use the divided plenum design offers exceptional low and mid range torque perfect for heavier vehicles street dominator dual plane manifolds are designed for use in the idle to 5500 rpm range street dominator® series single plane the holley single plane street dominator series was designed for use in the idle to 6000 rpm range engineering designed these intakes to make maximum peak power without sacrificing the low end torque normally only associated with dual plane designs large plenum volumes and optimized runners make these ideal manifolds for use on stock and mildly modified engines p/n 8150 p/n 7547-1 p/n 7622 intake manifolds p/n 1984 p/n 7542p air ram intakemanifold tm p/n 300-111p p/n 300-64 p/n 300-14 efi series single plane traditional single plane street/strip manifolds are designed with all the necessary provisions for mpfi including fuel injector bungs and rail mounts these can be utilized to build custom one-off efi systems or purchased complete as a part of a holley commander 950 efi system designed for operation in the 2500 to 6000 rpm range depending on engine size and port configuration p/n 9901-209 6 www.weiand.com

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