Carburetor Standard Main Jet - 122-49 fine-lines 7L V8 1988 - 1991

7L V8 1988 - 1991 GMC K2500 350/5

1966-1968 Ford Galaxie

All the parts required for a fast

Application 68-72 Pontiac Lemans GTO

Carburetor Standard Main Jet - 122-49 fine-lines 7L V8 1988 - 1991Overview: 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 &