Holley Main Jets 65 #122-65 TOP1150 Class II accuracy printed blade

Class II accuracy printed blade

Through or blind holes

Only a stainless steel hex key guarantees that the screw will not be contaminated and will resist corrosion

Drill - Blue

into position

Holley Main Jets 65 #122-65 TOP1150 Class II accuracy printed bladeThese 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. Standard Main Jet . 065" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500