Standard Main Jet #72 HO122-72 Product:1/4-32" Thread, .0755" Hole Size (Pair) Internal self-exciting regulator

Internal self-exciting regulator

Made from billet 6061 T6 aluminium these regulators are an ideal upgrade for the Carburettor or EFI fuel systems

150 Series Taper One-Piece Full Flow Swivel 180° Hose End -12ANBlue/Red Finish

AF206-08DS

Standard Main Jet #72 HO122-72 Product:1/4-32" Thread, .0755" Hole Size (Pair) Internal self-exciting regulatorStandard Main Jet #721 4 32" Thread, . 0755" Hole Size (Pair) HO122 72 122 72 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.