Carburetor Standard Main Jet - 122-58 FINE-LINES Fits 1997-2001 Ford F-150 and

Fits 1997-2001 Ford F-150 and F-250

It's ethanol compatible

6L V8 1961 - 1965 Dodge Polara 413/6

Max Power Gains of up to 14

Note: Fits 2/4 wheel drives with 140

Carburetor Standard Main Jet - 122-58 FINE-LINES Fits 1997-2001 Ford F-150 andOverview: 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 &