Holley Standard Main Jet #80 (HO122-80) M10 Features a heavier Diaphragm pressure

Features a heavier Diaphragm pressure plate which will have between 25-30% more clamp load over standard specifications

000 HP at 43 PSI

Comparable and interchangeable with popular Holley® 12-803 regulator

Arp Head Stud Kits Are Available With Your Choice Of Conventional Hex Nuts Or Compact 12-point Nuts

064" Hole Size (Pair)

Holley Standard Main Jet #80 (HO122-80) M10 Features a heavier Diaphragm pressureHO122 80 HOLLEY MAIN JETS, 2 PACK (80) 1 4 32" Thread, . 0890" Hole Size (Pair) Part Number: HO122 80 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.