Carburetor Standard Main Jet - 122-90 409-stainless Air Injection Tubes: No

Air Injection Tubes: No

instructions are included and lines have tags showing which bends to remove

and 12846ERL regulators

These cut-outs will provide years of worry free use with a mixture of stainless steel and aluminum

1957-1964 Chevrolet Bel Air 283 CID

Carburetor Standard Main Jet - 122-90 409-stainless Air Injection Tubes: NoOverview: 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 &