Holley designed these throttle bodies with all relevant emission provisions and hook-ups for a true 50-State legal installation. They are engineered for a "bolt-on" installation on stock factory manifolds for the applications cataloged. This replacement throttle body is considered to be the functional equivalent of the original equipment throttle body and, as such, is considered to be 50-State legal. Therefore, the C.A.R.B. E.O. number is not required.
Direct Replacement For OE Units
2 in. Throttle Bore
42% Area Increase Over Stock TBI
Including Air Distribution Ring
Increased Torque and Horsepower up to 25%
50 State Legal
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Questions & Answers
Would this work on a 91 k5 blazer
Asked by: Red dot
If your 1991 K5 Blazer has a 5,7L engine with two barrel Throttle body injection this system will work on your vehicle.
Answered by: vince
Date published: 2021-05-18
Will this work on the 94 454
Asked by: Rick
Thanks for reaching out to us. This unit would be best for the 5.7 Liter. It doesn't flow enough to support your 454. Unfortunately we do not offer one for your application. Have a Great Day!
Answered by: eastwood alsip
Date published: 2021-04-20
Will this work on my 92 buick Roadmaster limited?
Asked by: Nardo
The Eastwood Holley 90-95 5.7L GM Truck 670 CFM TWO BARREL TBI 502-9 is specified as a truck application part and is not recommended for a 1992 Buick Roadmaster. You may want to call Holley Performance @ 1-888-258-3835 to check and confirm proper application for your vehicle.
Answered by: vince
Date published: 2021-01-10
Will this work on my 95 tahoe
Asked by: Cowboy 57
Yes it works on your truck. To c any power gains u need to have your intake manifold bored to match the 2” opening of the holly tbi. I did all that and the truck woke up. Regards HHPete47