Dominator HP #25 Air Bleed

The Dominator HP #25 Air Bleed from Holley is a precision carburetor tuning component designed for high-performance fuel system calibration. This air bleed jet serves a critical function in carburetors where precise fuel atomization and air-fuel mixture control are essential for optimal engine performance. Whether you're building a street machine, preparing for the track, or fine-tuning an existing carburetor setup, the correct air bleed sizing directly impacts throttle response, idle quality, and overall drivability across the entire rpm range.

Air bleeds work by introducing a controlled amount of air into the fuel circuit, reducing fuel density and improving atomization in the carburetor's emulsion tubes and discharge nozzles. The Dominator HP #25 designation indicates a specific orifice size calibrated for mid-range performance applications, making it ideal for street and street-strip engines where balanced fuel delivery across varying load conditions is paramount. Holley's engineering ensures consistent quality and precise bore tolerances, allowing tuners to dial in mixture curves with confidence. As a size #25 air bleed, this component is part of Holley's modular tuning system, enabling customization without replacing entire carburetor assemblies.

This air bleed is essential for carburetor enthusiasts running Holley four-barrel carburetors, particularly the Dominator HP series on naturally aspirated, moderate to high-displacement engines. Installation requires carburetor removal and disassembly to access the emulsion block, making it a job suited for experienced tuners or professional rebuilders. The lightweight, compact design (0.04 lbs, 3.5 x 0.55 x 5 inches) makes handling and installation straightforward once the carburetor is on the bench. Proper air bleed selection is crucial—too large creates lean conditions and hesitation, while too small restricts proper fuel atomization. For anyone serious about carburetor tuning and seeking repeatable, predictable results, the Dominator HP #25 Air Bleed delivers the precision and quality Holley is known for.