Holley Standard Main Jets . Size 55 # HO122-55 Rate_12 3/8" thick machined head flanges

3/8" thick machined head flanges for perfect sealing surface

Fender Cover Logo:Edelbrock E-Force Supercharger

with Gasket

This Patent Pending kit allows you to use a 10SI or 12SI GM 1 Wire alternator on a Ford Small Block

Holley Standard Main Jets . Size 55 # HO122-55 Rate_12 3/8" thick machined head flangesHolley Standard Main Jets . Size 55 # HO122 55 BRAND NEW 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.