Holley 0-80803HB Ultra XP Gas 750 CFM 4 Barrel Carburetor

Holley HP™ Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection. (LINK) Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side. Aluminum ConstructionSaves 4.5 lbs - 38% Billet Aluminum Metering BlocksFully adjustable (emulsion bleeds, power valve channel restrictors and idle feed restrictors)Power valve channel restrictors now machined lower in metering block for improved fuel delivery to power valve circuit. Billet Aluminum Base PlatesStainless steel adjustable secondary linkProvides choice of 1:1 or progressive secondary throttle actuation for ultimate control of secondary opening rate. All New Fuel Bowl Design20% more fuel capacity vs. a traditional v-bowl eliminates fuel starvation and provides consistent air/fuel ratios. Updated Main Body DesignIntegrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationshipHelps maintain good idle control when using radical camshafts. Aluminum ConstructionSaves 4.5 lbs - 38% Billet Aluminum Metering BlocksFully adjustable (emulsion bleeds, power valve channel restrictors and idle feed restrictors)Power valve channel restrictors now machined lower in metering block for improved fuel delivery to power valve circuit. Billet Aluminum Base PlatesStainless steel adjustable secondary linkProvides choice of 1:1 or progressive secondary throttle actuation for ultimate control of secondary opening rate. All New Fuel Bowl Design20% more fuel capacity vs. a traditional v-bowl eliminates fuel starvation and provides consistent air/fuel ratios. Updated Main Body DesignIntegrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationshipHelps maintain good idle control when using radical camshafts.

Designed For Race Engines Billet Aluminum Metering Blocks w/Changeable Emulsion Bleeds Billet Aluminum Base Plate For Strength Glass Sight Windows For Quick Fuel Adjust. Incl. Notched Float/Jet Extensions Progressive Secondaries/4 Corner Idle Dual Fuel Inlets/Dual 30cc Acc. Pumps