{"product_id":"holley-gen-3-marine-ultra-dominator-carburetor-0-80903hbm","title":"Holley Gen 3 Marine Ultra Dominator Carburetor - 0-80903HBM","description":"The patent pending GEN 3 main–body is 5\/16\" taller than the previous generation! This new height allowed for larger radius air entries which were optimized using Computational Fluid Dynamics (CFD) software to deliver smoother flow into new fully machined, big bore venturii.\n\nThe main-body also features an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship as well as an extended air cleaner flange for easy air scoop attachment when using the available air scoop adapter.\n\nThe Gen 3 utilizes high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh.\n\nOther features include all aluminum construction, 12-hole billet booster inserts, fully tunable billet metering blocks, adjustable external linkage, throttle position sensor mounting points and knurled (hand adjustable) curb idle screws. Each calibration has been dyno tested to deliver proven performance!\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll aluminum construction saves 3.8lbs. over original models (28% weight savings)\u003c\/li\u003e\n\u003cli\u003eGray anodized finish with black anodized billet aluminum metering block and booster inserts\u003c\/li\u003e\n\u003cli\u003eDesigned for use on Marine high horsepower engines\u003c\/li\u003e\n\u003cli\u003eFully machined from venturi throat to throttle bore for predictable \u0026amp; repeatable performance\u003c\/li\u003e\n\u003cli\u003eIntegrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship\u003c\/li\u003e\n\u003cli\u003e12 hole billet booster inserts for superior atomization and crisp throttle response\u003c\/li\u003e\n\u003cli\u003eMetering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors \u0026amp; idle feed restrictors)\u003c\/li\u003e\n\u003cli\u003eDual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle\u003c\/li\u003e\n\u003cli\u003eFuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling\u003c\/li\u003e\n\u003cli\u003eClear sight windows on both sides of bowls for easy and safe fuel level adjustments\u003c\/li\u003e\n\u003cli\u003eBuilt in drain plug in front center of bowl provides easy access to empty contents of bowl\u003c\/li\u003e\n\u003cli\u003e8 (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side\u003c\/li\u003e\n\u003cli\u003eFactory ready TPS mounting points for use with data acquisition systems (Holley TPS P\/N 534-214 available)\u003c\/li\u003e\n\u003cli\u003eKnurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools\u003c\/li\u003e\n\u003cli\u003eContoured hex head squirter screws for streamlined airflow\u003c\/li\u003e\n\u003cli\u003eFully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor\u003c\/li\u003e\n\u003cli\u003e100% wet-flow tested by Holley technicians to assure it arrives ready to run!\u003c\/li\u003e\n\u003cli\u003eJ-Style vent tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e 1050 CFM - 4500 - Mechanical Secondaries - Hard Core Gray - Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Air Bleeds:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Emulsion Bleeds:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Idle Feed Restrictors:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Cleaner Flange Diameter:\u003c\/strong\u003e 7 1\/4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Quantity:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrels:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrels Quantity:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Color:\u003c\/strong\u003e Hard Core Gray with Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Color:\u003c\/strong\u003e Hard Core Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Finish:\u003c\/strong\u003e E-Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBooster:\u003c\/strong\u003e Annular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBooster Design:\u003c\/strong\u003e Annular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Use:\u003c\/strong\u003e Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM:\u003c\/strong\u003e 1050\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM Rating:\u003c\/strong\u003e 1050\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoke:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoke Type:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Count:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Hard Coat Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCubic Feet Per Minute Rating:\u003c\/strong\u003e 1050\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Hard Core Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Shape:\u003c\/strong\u003e Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type:\u003c\/strong\u003e Dominator\/4500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Level:\u003c\/strong\u003e Externally Adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Inlet:\u003c\/strong\u003e Dual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Inlet Center to Center:\u003c\/strong\u003e 11.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Inlet Count:\u003c\/strong\u003e Dual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Inlet Type:\u003c\/strong\u003e -8 ORB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Or Seal Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Race\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Speed Air Bleed:\u003c\/strong\u003e 43\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdle Air Bleed Size:\u003c\/strong\u003e 65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntermediate Air Bleed:\u003c\/strong\u003e 71\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinkage Attached:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Approved:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Engine Size:\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Use:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeter Block Material:\u003c\/strong\u003e Billet Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetering Block Color:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 4500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hole Quantity:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeedle and Seat Size:\u003c\/strong\u003e 120;120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Carburetor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Float Type:\u003c\/strong\u003e Center Hung Nitrophyl\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Jet Diameter:\u003c\/strong\u003e 84\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Main Jet Size:\u003c\/strong\u003e 84\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Power Valve:\u003c\/strong\u003e 6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Pump Nozzle Size:\u003c\/strong\u003e 35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Throttle Bore Diameter:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Venturii Diameter:\u003c\/strong\u003e 1.69\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Marine Carburetor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondaries:\u003c\/strong\u003e Mechanical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Barrel Type:\u003c\/strong\u003e Mechanical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Float Type:\u003c\/strong\u003e Center Hung Notched Nitrophyl\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Jet Extensions:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Main Jet Size:\u003c\/strong\u003e 84\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Pump Nozzle Size:\u003c\/strong\u003e 35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Throttle Bore Diameter:\u003c\/strong\u003e 2.000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Gen 3 Dominator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacer Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupercharged Application:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Bore Diameter:\u003c\/strong\u003e 2.000 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Ports:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenturii Size:\u003c\/strong\u003e 1.690 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cp\u003eNew or modified fuel lines are required (if replacing existing Holley Dominator 4500 series carburetor - previous bowl machining was 7\/8-20, Aluminum Ultra Dominator carburetors come assembled with -6AN to SAE 8 port fittings). 0-80903HBM center to center fuel inlet measurement is now 11.5\"\u003c\/p\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":49709900103918,"sku":"HLY-0-80903HBM","price":2049.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/66141a4b35f67ad4809002a3295b6b7b232f1941.jpg?v=1791512351","url":"https:\/\/elmosspeedshop.com\/products\/holley-gen-3-marine-ultra-dominator-carburetor-0-80903hbm","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}