{"product_id":"holley-0-80577sa-supercharger-xp-carburetor-draw-thru","title":"Holley 0-80577SA - Supercharger XP Carburetor - Draw-Thru","description":"\u003cp\u003eHolley 0-80577SA - Supercharger XP Carburetor - Draw-Thru\u003c\/p\u003e\u003cp\u003eCarburetor - Supercharger XP - Model 4150 - 4-Barrel - 950 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Aluminum - Black Anodized \/ Tumble Polished - Each\u003c\/p\u003e\u003cp\u003eSupercharger XP Carburetor; 4 bbl; 950 cfm; Draw Thru Design; Mechanical Secondary; 1.750 in. Throttle Bore; Aluminum;\u003c\/p\u003e\u003cp\u003eBy popular demand, Holley is expanding the draw-thru supercharger carburetor line to now include the XP series. Like the existing HP line, these are available in 600, 750, and 950 CFM flow rates and standard polished with black accents. The feature-laden XP includes a contoured venturi inlet for balanced air flow, screw in air bleeds for precision tuning capabilities, high flow billet metering blocks, billet base plate, and Dominator style fuel bowls which allow plumbing from either side. Supercharger XP carburetors also have a unique capability that allows their power valves to reference the intake manifold vacuum below the supercharger. This allows the power valve to operate as it should, based off intake manifold vacuum. A power valve provides further enrichment to the main metering system under load (low vacuum) conditions. Holley XP carburetors are the standard for square bore race carburetors. Race-Ready out of the box!\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTumble polished shiny finish for good looks\u003c\/li\u003e\n\u003cli\u003eBig block Chevrolet 2x4, 871 \u0026amp; 1071 blower calibration\u003c\/li\u003e\n\u003cli\u003eContoured venturri inlet offers balanced airflow for increased horsepower\u003c\/li\u003e\n\u003cli\u003eScrew in air bleeds for precision tuning capabilities\u003c\/li\u003e\n\u003cli\u003eDual 30cc accelerator pumps for additional fuel under initial acceleration\u003c\/li\u003e\n\u003cli\u003eDual feed fuel inlets for constant high volume fuel delivery\u003c\/li\u003e\n\u003cli\u003e4 corner idle allows you to precisely control your idle system\u003c\/li\u003e\n\u003cli\u003eMechanical Secondaries for perfect off the line launches\u003c\/li\u003e\n\u003cli\u003eBoost referenced power valve for proper enrichment under acceleration\u003c\/li\u003e\n\u003cli\u003eThrottle lever cut off for clearance on a sideways application\u003c\/li\u003e\n\u003cli\u003e100% wet-flow tested by Holley technicians to assure it arrives ready to run!\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBarrel Quantity\u003c\/strong\u003e: \u003cspan\u003e4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBarrels\u003c\/strong\u003e: \u003cspan\u003e4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBody Color\u003c\/strong\u003e: \u003cspan\u003ePolished Aluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBody Finish\u003c\/strong\u003e: \u003cspan\u003ePolished\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBooster\u003c\/strong\u003e: \u003cspan\u003eDownleg\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBooster Design\u003c\/strong\u003e: \u003cspan\u003eDownleg\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eHolley\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Material\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Use\u003c\/strong\u003e: \u003cspan\u003ePerformance and Race\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eAir and Fuel Delivery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCFM Rating\u003c\/strong\u003e: \u003cspan\u003e950\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eChoke\u003c\/strong\u003e: \u003cspan\u003eNone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eChoke Type\u003c\/strong\u003e: \u003cspan\u003eNone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCircuit Count\u003c\/strong\u003e: \u003cspan\u003e2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: \u003cspan\u003ePolished Aluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCondition\u003c\/strong\u003e: \u003cspan\u003eNew\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCubic Feet Per Minute Rating\u003c\/strong\u003e: \u003cspan\u003e950\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003ePolished\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFlange Shape\u003c\/strong\u003e: \u003cspan\u003eSquare\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: \u003cspan\u003eSquare\/4150\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel\u003c\/strong\u003e: \u003cspan\u003eGasoline\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel Inlet\u003c\/strong\u003e: \u003cspan\u003eDual\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: \u003cspan\u003eGasoline\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eLinkage Attached\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMarine Approved\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: \u003cspan\u003eXP-Series\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Quantity\u003c\/strong\u003e: \u003cspan\u003e4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003epart type\u003c\/strong\u003e: \u003cspan\u003eCarburetor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePrimary Jet Diameter\u003c\/strong\u003e: \u003cspan\u003e90\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePrimary Main Jet Size\u003c\/strong\u003e: \u003cspan\u003e90\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePrimary Power Valve\u003c\/strong\u003e: \u003cspan\u003e10.5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePrimary Pump Nozzle Size\u003c\/strong\u003e: \u003cspan\u003e31\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eCarburetor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSecondary Barrel Type\u003c\/strong\u003e: \u003cspan\u003eMechanical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSecondary Main Jet Size\u003c\/strong\u003e: \u003cspan\u003e95\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSecondary Pump Nozzle Size\u003c\/strong\u003e: \u003cspan\u003e31\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSpacer Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSub Category\u003c\/strong\u003e: \u003cspan\u003eCarburetion\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSupercharger Compatible\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSystem Type\u003c\/strong\u003e: \u003cspan\u003eDraw Thru\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Bore Diameter\u003c\/strong\u003e: \u003cspan\u003e1.750 inch\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eVenturii Size\u003c\/strong\u003e: \u003cspan\u003e1.375 inch\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: \u003cspan\u003eManufacturer's Limited 90 Day Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Holley","offers":[{"title":"Default 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