Carburetor Standard Main Jet - 122-98 y-pipe 50 inch Emission Code 4

50 inch Emission Code 4 Engine Chevrolet Small Block Header Finish Silver Ceramic Header Style Long Tube Primary Tube Dia

00-inch and 3

1970-1974 Pontiac Firebird

Application: 1973-1976 Ford F-100

Calibrated specifically for use on circle track

Carburetor Standard Main Jet - 122-98 y-pipe 50 inch Emission Code 4Overview: 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 &