Holley Ultra XP Marine Carburettor CFM 750 4-Barrel Hard core gray 0-80803HBM
(Prior to Dispatch)
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Holley aluminum Ultra XP Marine carburetors weigh up to 38 percent less than their traditional race carbs. They also have a fuel capacity that's 20 percent greater, and many other features. These units are built to exceed the Coast Guard standards and are J1223 Marine Standard-certified. Holley offers Ultra XP Marine carbs in a Hard Core Gray hard coat anodized finishwith black billet for improved corrosion protection in fresh or salt water conditions. Whether you're hitting the lake for a relaxing cruise or some high-speed fun, Holley aluminum Ultra XP Marine carburetors are ready to meet all of your performance demands. Additional features include: * Aluminum lightweight construction * Contoured venturi inlet offers balanced airflow for increased horsepower * Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturi * Metering blocks feature improved durability, true gasket sealing, and are fully adjustable (emulsion bleeds, power valve channel restrictors, and idle feed restrictors) * Integrated idle bypass valve (eliminates the need for holes in throttle plates; allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship) * Helps maintain good idle control when using radical camshafts * Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle * Fuel bowls provide 20 percent more fuel capacity, while controlling slosh with internal baffling * Clear sight windows on both sides of bowls for easy and safe fuel level adjustments * Built-in drain plug in front center of bowl provides easy access to empty contents of bowl * 8 AN (O-ringed) inlet threads offer a large variety of plumbing optionsand can be plumbed from either side * 4-corner idle allows precise control of your idle system * Elongated (dual-pattern) mounting holes allow fitment on intakes with square flange (Holley 4150 style) or large flange (Holley Dominator style) * Knurled (hand-adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools * Primary throttle shaft capped to prevent entry of debris and contaminates * Stainless steel adjustable secondary link (provides choice of 1:1 or progressive secondary throttle actuation for ultimate control of secondary opening rate) * Baseplate designed with a boss that can be consumer-machined for vacuum source * Includes notched float and jet extensions * 100 percent wet-flow tested by Holley technicians to assure it arrives ready to run