Holley Main Jets 63 #122-63 Brand_Eze-Lap Sealing Style: O-ring

Sealing Style: O-ring

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Proprietary materials and proven technologies like PermaDry and PermaDryPlus help ensure a reliable seal on even the most troublesome applications

Vise-Grips

Holley Main Jets 63 #122-63 Brand_Eze-Lap Sealing Style: O-ringThese 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