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Designed exclusively for extreme-duty racing conditions
T-Shirt - Allstar Logo - Charcoal - Medium - Each
630 in Round Port - Composite - Small Block Chevy - Pair
Window Crank - 5-1/2 in Length - 1/2 in Round Spline - Aluminum - Gray Powder Coat - Ford / GM - Pair
Exhaust System - Sport - Cat-Back - 3 in Diameter - Dual Rear Exit - Dual 4 in Black Tips - Stainless - Natural - 6
Holley - 500 CFM - 2300 - Hard Core Gray - Gasoline Designed exclusively for extreme-duty racingThe 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 easy fine