Holley Standard Main Jets . Size 78 # HO122-78 Rate_Engine Throttle Body Material:

Throttle Body Material:

Holley 4160 aluminum street carburetors are offered in electric chokes for easy warm-ups or manual chokes allowing you to control the warm up

The brass metering jets are designed for use with Edelbrock Performer series and Thunder series AVS carburetors only

Inlet/3 in

Kit includes adjusting rod to allow for greater flexibility with alternator location

Holley Standard Main Jets . Size 78 # HO122-78 Rate_Engine Throttle Body Material:Holley Standard Main Jets . Size 78 # HO122 78 GENUINE HOLLEY STANDARD MAIN JETS. SALE IS FOR A PACKET OF 2 JETS. Fine tune your carburetor for street or race conditions. These Holley standard main jets are just what you need to fine tune your carburetor for street or race. Threaded for easy installation and removal, Holley jets are manufactured to high tolerances for consistency.