Holley

Standard Main Jet #641/4-32" Thread, .064" Hole Size (Pair)HO122-64122-64These metering orifices control fuel flow into the metering system. They a...

Standard Main Jet #651/4-32" Thread, .065" Hole Size (Pair)HO122-65122-65These metering orifices control fuel flow into the metering system. They a...

Standard Main Jet #661/4-32" Thread, .066" Hole Size (Pair)HO122-66122-66These metering orifices control fuel flow into the metering system. They a...

Standard Main Jet #671/4-32" Thread, .0663" Hole Size (Pair)HO122-67122-67These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #681/4-32" Thread, .0685" Hole Size (Pair)HO122-68122-68These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #691/4-32" Thread, .0693" Hole Size (Pair)HO122-69122-69These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #701/4-32" Thread, .0735" Hole Size (Pair)HO122-70122-70These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #711/4-32" Thread, .0750" Hole Size (Pair)HO122-71122-71These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #721/4-32" Thread, .0755" Hole Size (Pair)HO122-72122-72These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #731/4-32" Thread, .0790" Hole Size (Pair)HO122-73122-73These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #741/4-32" Thread, .0800" Hole Size (Pair)HO122-74122-74These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #751/4-32" Thread, .0820" Hole Size (Pair)HO122-75122-75These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #761/4-32" Thread, .0840" Hole Size (Pair)HO122-76122-76These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #771/4-32" Thread, .0855" Hole Size (Pair)HO122-77122-77These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #781/4-32" Thread, .0870" Hole Size (Pair)HO122-78122-78These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #791/4-32" Thread, .0890" Hole Size (Pair)HO122-79122-79These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #801/4-32" Thread, .0890" Hole Size (Pair)HO122-80122-80These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #811/4-32" Thread, .0920" Hole Size (Pair)HO122-81122-81These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #821/4-32" Thread, .0940" Hole Size (Pair)HO122-82122-82These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #831/4-32" Thread, .0975" Hole Size (Pair)HO122-83122-83These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #841/4-32" Thread, .0990" Hole Size (Pair)HO122-84122-84These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #851/4-32" Thread, .0985" Hole Size (Pair)HO122-85122-85These metering orifices control fuel flow into the metering system. They ...

Standard Main Jet #861/4-32" Thread, .100" Hole Size (Pair)HO122-86122-86These metering orifices control fuel flow into the metering system. They a...

Standard Main Jet #871/4-32" Thread, .1015" Hole Size (Pair)HO122-87122-87These metering orifices control fuel flow into the metering system. They ...