Carburetor Standard Main Jet - 122-70 automatic Pump to Carburetor Fuel Line

Pump to Carburetor Fuel Line For 55 Ford Thunderbird Filter to Carb Line Steel

Body Length: 17

1979-1986 GMC K2500

Muffler Body Material: Aluminized Steel

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Carburetor Standard Main Jet - 122-70 automatic Pump to Carburetor Fuel LineOverview: 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 &