High Performance Chevy Engines
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This is no ordinary 750-cfm HP Holley; actually, it was built specifically for blower duty by The Carb Shop. Quite frankly, with the Vrbancic brothers' years of experience, it was only a matter of playing with the idle mixture screws and we never touched the carb again. The real key to the carb is that all the circuitry in the carburetor is completely different and features a special down-feed 0.152-inch needle and seat, and for street duty, it utilizes a balance line between the float boats to promote drivability at lower throttle plate positions. View Related Article
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