Dominator HP #28 Air Bleed

The Dominator HP #28 Air Bleed from Holley is a precision carburetor tuning component designed for serious engine builders and performance enthusiasts who require precise fuel-air mixture control. This metering jet is crucial for carburetors operating at higher horsepower levels, where standard air bleed configurations may not provide optimal atomization and combustion efficiency.

Air bleeds function by introducing a specific volume of air into the fuel circuit of a carburetor's main metering system, effectively leaning the fuel mixture as engine speed and load increase. The #28 specification indicates a calibrated orifice diameter that balances fuel emulsion and vaporization for high-performance applications. This small but essential component weighs 0.04 lbs and measures 3.45 x 0.65 x 4.95 inches, fitting into the air bleed passage of Holley Dominator HP carburetors.

Selecting the correct air bleed size is fundamental to carburetor calibration, as undersizing restricts air introduction and can lead to an overly rich mixture, while oversizing may lean it excessively, risking engine performance issues. The Dominator HP #28 Air Bleed is particularly suited for small-block or medium engine combinations that require precise tuning for optimal performance.