Holley Standard Main Jet #55 (HO122-55) AF64-2009P Koyo has also integrated a

Koyo has also integrated a 1/8” NPT female accessory fitting (supplied with a threaded plug) to accept temperature sensors typically included with aftermarket temperature gauges

HO508-22 - LS HI-RAM INTAKE GASKET SET

HO554-113 - EFI ECU ONLY HP STYLE

RB20E Engines

x4 -8AN Outlet With 1/8" Boost Port

Holley Standard Main Jet #55 (HO122-55) AF64-2009P Koyo has also integrated aHO122 55 HOLLEY MAIN JETS, 2 PACK (55) 1 4 32" Thread, . 054" Hole Size (Pair) Part Number: HO122 55 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.