Holley Main Jets 63 #122-63 ARG8128 HEI style distributor caps are

HEI style distributor caps are used featuring brass terminals for long service life under extreme operating conditions

Billet housing is 5/8” smaller in diameter than stock Ford distributors

3 D13B 1995-2000 (Front)

Waterproof transmitter for automatic start/stop of the vacuum cleaner connected to the receiver socket

This Is Among Others Possible By Using A Steam-Treated Sawblade

Holley Main Jets 63 #122-63 ARG8128 HEI style distributor caps areThese 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 . 063" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500