Holley Main Jets 68 Pair #122-68 Flat Wshr M20 *In comparison with conventional model

*In comparison with conventional model DH24PC

The Performer Holden manifold has been designed to fit both cylinder head bolt hole patterns

Chrome dual throttle return springs and bracket

Will not fit EFI Heads (see #7594)

long tube header

Holley Main Jets 68 Pair #122-68 Flat Wshr M20 *In comparison with conventional modelThese 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 : Standard Main Jet . 068" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500