SP Dominator 1050CFM Carburetor 2-Circuit

The Holley SP Dominator 1050 CFM carburetor is a high-flow, four-barrel mechanical secondary unit engineered for street and competition applications demanding consistent fuel delivery and precise air-fuel ratio control. This 1050 CFM carburetor features the Dominator flange mount configuration and delivers the volumetric capacity required for naturally aspirated engines operating in the 450–550 horsepower range, making it a proven choice for serious enthusiasts building or upgrading powerplants that require responsive throttle response and stable idle characteristics.

The carburetor's dual-inlet design accommodates flexible fuel supply routing, while the mechanical secondary system provides progressive fuel metering as engine load increases—eliminating the hesitation or stumble typical of carburetors with poorly tuned secondary circuits. The no-choke configuration streamlines cold-start procedures on engines equipped with dedicated starting systems or manifold heat sources. Construction is aluminum throughout, finished in tumble-polished detail for both appearance and thermal properties. At 1050 CFM, this unit sits in the sweet spot between street manners and sustained high-RPM performance without excessive fuel consumption at cruise.

Builders restoring or hot-rodding carbureted platforms—whether small-block Chevy, Ford Windsor, or equivalent displacement engines—will find the Dominator SP well-suited for naturally aspirated builds seeking reliable fuel regulation and repeatable performance across part-throttle and wide-open-throttle scenarios. The Dominator platform is also popular in marine, off-road, and vintage drag racing circles where proven mechanical reliability and tuning flexibility are essential.

The Holley name carries significant credibility in fuel management—decades of racing heritage and OEM partnerships underscore the engineering rigor built into this carburetor. For builders prioritizing a platform that balances streetability with competitive performance, the Dominator 1050 CFM represents a proven, tunable foundation.