PROFORM Carburetor With Mechanical Secondaries Race Series 4V
Highlights
- All-Aluminum Next-Gen Build
- Fully Adjustable
- Increased Airflow And Power
- Made In the USA
PROFORM 4V Race Series Carburetor with Mechanical Secondaries.
PROFORM 4V Race Series Carburetor has taken carburetors to new heights with an all-aluminum next-gen main body and billet aluminum metering blocks for more efficient integration with the fuel bowl. The throttle base plate is built of billet aluminum and prevents warping. Adjust the metering blocks and throttle plate how you would like and enjoy improved fuel control. Boasting sight glass windows and billet fittings, the aluminum fuel bowls complement the rest of the carb with an easy float setting and reduced fuel slosh for a truly enhanced experience.
Features and Benefits:
- All-aluminum billet throttle plate, metering blocks, and next-gen main body
- Billet fillings and sight glass fuel bowl
- Fully adjustable and won’t warp
- USA-made with 100% new components
- New 2-step down-leg boosters with contoured venturis and without a choke
- Increased airflow, fuel control, and fuel atomization
- Mechanical secondaries to fine-tune throttle performance
- 4 barrel carburetor gives more power
- Available in 650, 750, 850, 950, and 1050 options
The next-gen main body showcases new 2-step down-leg boosters and contoured venturis for increased performance. PROFORM 4V Race Series Carburetor works as a united system to provide improved airflow and fuel atomization so that your vehicle is performing at its best.
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Engine, Mustang Carburetors, Ford Bronco Parts, Ford F-100 Parts
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles

Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years: