Holley 2300 ALUM ULTRA XP 500 CFM

500 CFM Ultra XP 2BBL Carburetor.

• Throttle shaft capped to prevent entry of debris & contaminates
• All aluminum construction – for nearly 50 Percent weight savings over zinc version
• Fuel bowl provides 20 Percent more fuel capacity while controlling slosh with internal baffling
• Clear sight windows on both sides of bowl for easy & safe fuel level adjustments
• Fuel trough designed into floor of bowl to route fuel flow directly to the jets and assists in keeping jets covered by fuel
• Built in drain plug provides easy access to empty contents of bowl
• Throttle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation
• 30cc pump with metal lever. Anti-siphon valve in mainbody to reduce pump pull over
• Dedicated race-only throttle lever with all unnecessary street attachment points & tangs removed
• Knurled (hand adjustable) curb idle screw allows for easy idle adjustment without the use of tools
• Set screw for wide open throttle stop adjustment
• Wedge float provides fuel control while cornering
• 100 Percent wet-flow tested by Holley technicians to assure it arrives ready to run!
• No choke tower for unobstructed airflow
• Air bleeds moved outward to allow a smoother transition of airflow
• Air cleaner flange centered over venturii for improved airflow and performance. 5/16-18 bent air cleaner stud included
• Down-leg boosters for improved fuel signal
• Contoured hex head squirter screw for streamlined airflow
• Internal pump passage on metering block equipped with tunable bleed off