Standard Main Jet #52 HO122-52 Product:1/4-32" Thread, .052" Hole Size (Pair) off-road and endurance competition due

off-road and endurance competition due to the OEM alternator stud failing and the subsequent loss of electrical power

baffled fuel pump

Sport-Comp II Tachometer5"

Firewall Feed ThroughBlack Finish

AF250-10-4

Standard Main Jet #52 HO122-52 Product:1/4-32" Thread, .052" Hole Size (Pair) off-road and endurance competition dueStandard Main Jet #521 4 32" Thread, . 052" Hole Size (Pair) HO122 52 122 52 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.