Holley Main Jets 66 #122-66 4340000 Temperature for Snap-Loc Systems is

Temperature for Snap-Loc Systems is approximately 200ø F (93øC)

1 handle for chuck (Allen key supplied)

Overall length 90mm

#4 Morse Taper Shank

modified end tooth geometry for stacked plate drilling is available

Holley Main Jets 66 #122-66 4340000 Temperature for Snap-Loc Systems isThese 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 . 066" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500