Carburetor Standard Main Jet - 122-98 y-pipe Uses the Factory Hanger Locations

Uses the Factory Hanger Locations for Easy Installation

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Works with Factory Power Steering and Power Brakes

they have spent countless hours perfecting their patterns and machine formulas in order to provide our customers with quality lines that meet the needs of their vehicle restoration or repair projects

Calibrated specifically for use on circle track

Carburetor Standard Main Jet - 122-98 y-pipe Uses the Factory Hanger LocationsOverview: 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 &