Holley Standard Main Jets . Size 74 # HO122-74 Rate_10 Two oxygen sensor mounting bosses

Two oxygen sensor mounting bosses (for installation in the exhaust system)

351W-ALTBRKT-D and SBF Serpentine Kits351C Option: Use with 351C-ALTBRKT

Stainless Steel Perforated Internal Plate Eliminates Internal Rust

Compatible with 6-7/16" center-to-center air cleaners

Holley Standard Main Jets . Size 74 # HO122-74 Rate_10 Two oxygen sensor mounting bossesHolley Standard Main Jets . Size 74 # HO122 74 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.