Holley Main Jets 64 #122-64 G12SR4(G6Z) Insert to suit R220

Insert to suit R220

Stroke x Spindle Centre Height: 75 x 22mm

UPC 082171095382

Exhaust Cutout Style: Manual

Bi-material grip resists to impacts

Holley Main Jets 64 #122-64 G12SR4(G6Z) Insert to suit R220These 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. Features: Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500 Sizes from 40 110 1 4 32 Thread . 064" Jet size Standard Main Jet Jet Hole