Holley Standard Main Jets . Size 51 # HO122-51 Rate_12 This timing cover is ideal

This timing cover is ideal for preventing camshaft walk when used with a thrust button

Go with Hooker Aero Chamber mufflers--the real master of flow

Whether you are looking for a street performance or an all out race mechanical fuel pump

Performer Carburetor

Holley Standard Main Jets . Size 51 # HO122-51 Rate_12 This timing cover is idealHolley Standard Main Jets . Size 51 # HO122 51 GENUINE HOLLEY STANDARD MAIN JETS. SIZE 51SALE 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.