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Calibration kit
The Edelbrock wide band air/fuel ratio kits include the interface unit
All Hardware Included
302 ENGINES
Valve Guides Included:
Holley Standard Main Jets . Size 45 # HO122-45 Cylinder Head Calibration kitHolley Standard Main Jets . Size 45 # HO122 45 BRAND NEW GENUINE HOLLEY STANDARD MAIN JETS. SIZE 45SALE 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.
