Holley 4412 CFD Air Cleaner Base
R2C CFD designed Air Cleaner base For Holley 4412 2 Barrel Applications.
Maximum Horsepower for Holley 4412 racers! 8-14 WHP gains
After extensive R&D and dyno/track testing with top engine and carburetor builders, R2C offers racers the best performing air cleaner system available for Holley 4412 and 7448 racers.
- More Horsepower and Mid-Range Torque than any 2 barrel racing base available today
- Precision Carburetor Air Horn/Choke Tower Fit - No more air cleaner base trimming and grinding!
- CFD designed and shaped carburetor inlet - Improved Airflow Characteristics
- Strong and lightweight construction that improves durability and filter sealing - Eliminates flexing and bent or dented bases.
- Fits all HEI equipped engines
Requires offset stud
Base P/N - AC10519
1/4" Offset Stud P/N R2C0629A35 1.625" Offset
5/16" Offset Stud P/N R2C0629A36 1.625" Offset
Use air filter R10522 or R10523 for Maximum Power for dirt track race cars. SSR10600 4" filter for pavement racing applications.
Overall Height 2.2"
Drop is .200 below Flange


PIt Filter designed for offset stud 4412 applications
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Part Number CF10506
Contact us at racing@r2cperformance.com with questions or for help selecting of the best performing products for your application.
- 7550 Industrial Drive, Forest Park, IL 60130
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