This retrofit main body kit converts 0-4777 (650 CFM) and 0-4779 (750 CFM) Carburetors to a 750 CFM HP main body for increased horsepower, torque.
- Eligible For Holley Contingency Programs
- All Necessary Parts Are Included
- Simple Installation With Common Hand Tools
- Calibrated For Optimum Performance/Drivability
- Reduces Turbulence And Smooths Air Entry Into The Venturi
- Eliminates Choke Tower/Associated Hardware
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
About Holley Performance Products
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!
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Holley HP Main Body Retro Fit Kit 134-300S: