500 CFM Ultra XP 2BBL Carburetor - 0-4412HBX street-carbs Part Number: 817891

Part Number: 817891

It is available for use with pump gas or race gas

6L engine is perfect for the person looking for a moderate to aggressive exterior and mild interior exhaust tone

1964-1967 Mercury Caliente

500 CFM Ultra XP 2BBL Carburetor - 0-4412HBX street-carbs Part Number: 817891Overview: The original Holley 0 4412 has powered thousands of racers to the winners' circle! How do you make it better? Add the proven design elements of the popular Ultra series for more tunability, more durability, more weight savings and more features! The Ultra XP 2bbl carburetors feature all aluminum construction for nearly 50% weight savings over their zinc counterparts, contoured venturii inlet for unobstructed airflow, screw in air bleeds for