Standard Main Jet #50 HO122-50 Gen 6 You can match these with

You can match these with our XPRO ignition lead wire that is 8

Give your GM LS engine the combability to flow some serious flow to feed even the most fuel hungry applications

Chrome Moly Black Oxide7/16" UNF Thread

but all new inside and out

550 Series Cutter Style One Piece Swivel 90° Stepped Hose End -10AN to -12 HoseBlue/Red Finish

Standard Main Jet #50 HO122-50 Gen 6 You can match these withStandard Main Jet #501 4 32" Thread, . 049" Hole Size (Pair) HO122 50 122 50 These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres 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.