Carburetor Standard Main Jet - 122-103 4-Door 7L engine and is perfect

7L engine and is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior sound with all of the performance benefits that you would expect from Flowmaster®

3L V8 1982 Buick LeSabre   267/4

8L V8 1977 - 1979 Ford F-100 351/5

6L V8 1967 Chevrolet K20 Panel 283/4

Year Make Model Position Fitment Notes 1961-1963 Buick Special Front Left or Front Right 1963-1964 Chevrolet Bel Air Rear Left or Rear Right 14

Carburetor Standard Main Jet - 122-103 4-Door 7L engine and is perfectOverview: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number. Click on Catalog Product Page for complete listing of jets and sizes. Features: Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 &