Carburetor Standard Main Jet - 122-106 High Margin Pump to Carburetor Fuel Line

Pump to Carburetor Fuel Line For 70-71 AMC V-8 4BBL Vac Wipers Steel

and cam shaft dictated stroke)

2-1/2” collector used for high tuck design and maximum exhaust component clearance

4L V8 1971 - 1972 Chevrolet Biscayne   454/7

7L V8 1955 GMC S370   288/4

Carburetor Standard Main Jet - 122-106 High Margin 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 &