Holley Main Jets 63 #122-63 TOP4323 koken - 1/4" dr torx

koken - 1/4" dr torx socket set on rail - 7pc - contents: 2025-28 torx bit sockets - t10

listing is for a single wrench only

- fixing system using the original screws under the chain shoe and the cable guide of the brake

tough tool

lens enhances visible color

Holley Main Jets 63 #122-63 TOP4323 koken - 1/4" dr torxThese 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