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Holley’s 50 State Legal Performance Two Barrel Throttle Bodies

By: Bill Tichenor10/20/2005 < Back to Blog Home
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Holley Performance Products is now producing performance two barrel throttle bodies for Chevy/GMC trucks and passenger cars.

Holley’s performance throttle bodies are a direct replacement for the O.E. units and are compatible with stock GM electronics. The enlarged throttle bores offers up to 42% more surface area over the stock TBI. This added area frees up the restriction to the engine increasing HP and torque. In a zero to 60 MPH performance test comparing a stock TBI to a Holley Performance TBI on a 5.0L equipped truck nearly a full second was shaved off the time.

Current applications available are 1985 ½-89 GM 2.8L “S” and “T” Series trucks, P/N 502-3; 1986-89 GM Truck 4.3L V-6 Engine, P/N 502-4; 1987-89 GM Truck 5.0L V-8 Engine, P/N 502-5; 1987-89 GM Truck 5.7L V-8 Engine, P/N 502-6; 1988-91 “S” and “T” Series Trucks 4.3L V-6 Engine, P/N 502-7; 1985-90 Passenger Cars 4.3L V-6 Engine, P/N 502-8; 1990-95 GM Truck 5.7L V-8 Engine, P/N 502-9.

Each two barrel throttle body kit includes the high flow throttle body, air distribution ring and installation instructions.

For more information contact Holley Tech Service, P.O. Box 10360, Bowling Green, KY, 42101-7360, Telephone 270-781-9741. For nearest dealer: 1-800-HOLLEY-1. Or visit us on the web: www.holley.com.

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