Carburetor Standard Main Jet - 122-60 cold-air-intake 2007-2013 Chevrolet Silverado 1500 w/

2007-2013 Chevrolet Silverado 1500 w/ 4L60-E Transmission

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5 volt charging systems and 80 psi

Fits 2004-2008 Ford F-150

Fuel Type: Gas (Does NOT Fit Models with Flex Fuel

Carburetor Standard Main Jet - 122-60 cold-air-intake 2007-2013 Chevrolet Silverado 1500 w/Overview: 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 &