Holley Standard Main Jets . Size 51 # HO122-51 Cylinder Head Notes:Moderate street high performance

Notes:Moderate street high performance

Transmission Case Style:

Chev 283 307 327 350 Holley 110 GPH Mechanical Fuel Pump # HO12-327-11

Transmission Mount Included:No

Holley Standard Main Jets . Size 51 # HO122-51 Cylinder Head Notes:Moderate street high performanceHolley 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.