Carburetor - 750CFM Ultra Double Pumper

The HOLLEY Carburetor - 750 CFM Ultra Double Pumper (model 0-76750RD) is a high-performance fuel delivery system designed for serious engine builders and hot rod enthusiasts who demand reliable, consistent carburetion on street and strip applications. This double-pumper carb addresses the limitations of single-pump designs by providing independent acceleration circuits and dual fuel bowls, ensuring smooth throttle response across the entire RPM range.

HOLLEY's Ultra series engineering incorporates precision-machined aluminum castings, metered idle circuits, and tunable accelerator pump systems that eliminate hesitation during gear changes and off-the-line launches. The dual-pump design fires independently, with each pump stroke calibrated to deliver fuel proportional to throttle demand—critical for engines running 400+ horsepower where fuel starvation or over-enrichment can cost tenths of seconds in the quarter-mile or cause stumbling on the street.

At 750 CFM, this carb flows enough air for naturally aspirated small-blocks and mid-sized big-blocks while remaining responsive enough for city driving. The metering rods and jet combinations allow fine-tuning for your specific engine displacement, ignition timing, and intake manifold design, making it an ideal choice for engine displacements ranging from 300 to 500 cubic inches.