Carburetor Standard Main Jet - 122-98 y-pipe Works with Factory Power Steering

Works with Factory Power Steering and Power Brakes

1970-1974 Pontiac Firebird

1979-1986 GMC K2500

00-inch and 3

Carburetor Standard Main Jet - 122-98 y-pipe Works with Factory Power SteeringOverview: 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 &