Holley Standard Main Jet #58 HO122-58 Fuel Pumps - Mechanical 12 and 16 voltcompatible

12 and 16 voltcompatible

Available to suit 4150/4500 style carburettors such as Holley

Part Number: AF8607-300

Part Number: AF83-1003BLK

Holley Standard Main Jet #58 HO122-58 Fuel Pumps - Mechanical 12 and 16 voltcompatibleStandard Main Jet #581 4 32" Thread, . 057" Hole Size (Pair) Brand: HOLLEY Part Number: HO122 58 Description: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres 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.