{"product_id":"holley-ultra-xp-2bbl-carburetor-0-4412bkx","title":"Holley Ultra XP 2BBL Carburetor 0-4412BKX","description":"\u003cdiv class=\"full_description\"\u003eThe original Holley 0-4412 has powered thousands of racers to the winners' circle! How do you make it better? Add the proven design elements of the popular Ultra series for more tunability, more durability, more weight savings and more features! The Ultra XP 2bbl carburetors feature all aluminum construction for nearly 50% weight savings over their zinc counterparts, contoured venturii inlet for unobstructed airflow, screw in air bleeds for easy fine tuning, black anodized fully adjustable billet aluminum metering block and baseplate, high capacity fuel bowl which features 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh and a centered air cleaner flange for improved airflow and performance. Other notable features include wedged floats, knurled hand adjustable curb idle screw and down leg boosters. Ultra XP 2bbl carburetors are approved for use in NASCAR¨ Mid-West\/West Coast Late Model Divisions and utilize the same venturii and throttle bore dimensions of the classic 4412 2bbl carburetor. Available in shiny or Hard Core Gray finishes, the Ultra XP 2bbl will outperform any production 2bbl available.\u003c\/div\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eAll aluminum construction - for nearly 50% weight savings over zinc version\u003c\/li\u003e\n\u003cli\u003eTumble polished aluminum with Blackª billet  aluminum metering block and base plate\u003c\/li\u003e\n\u003cli\u003eNo choke tower for unobstructed airflow\u003c\/li\u003e\n\u003cli\u003eAir bleeds moved outward to allow a smoother transition of airflow\u003c\/li\u003e\n\u003cli\u003eAir cleaner flange centered over venturii for improved airflow and performance. 5\/16-18 bent air cleaner stud included\u003c\/li\u003e\n\u003cli\u003eDown-leg boosters for improved fuel signal\u003c\/li\u003e\n\u003cli\u003eContoured hex head squirter screw for streamlined airflow\u003c\/li\u003e\n\u003cli\u003eInternal pump passage on metering block equipped with tunable bleed off\u003c\/li\u003e\n\u003cli\u003eSame 1-3\/8Ó Venturii \u0026amp; 1-11\/16Ó Throttle Bore size and Throttle Plate\/Throttle Shaft size of original 0-4412\u003c\/li\u003e\n\u003cli\u003eFuel bowl provides 20% more fuel capacity while controlling slosh with internal baffling\u003c\/li\u003e\n\u003cli\u003eClear sight windows on both sides of bowl for easy \u0026amp; safe fuel level adjustments\u003c\/li\u003e\n\u003cli\u003eFuel trough designed into floor of bowl to route fuel flow directly to the jets and assists in keeping jets covered by fuel\u003c\/li\u003e\n\u003cli\u003eBuilt in drain plug provides easy access to empty contents of bowl\u003c\/li\u003e\n\u003cli\u003e-8 (O-ring) inlet threads offer a large variety of plumbing options (come \twith an extended -8 O-ring to -8AN male adapter and -8 plug). Can be plumbed from either side\u003c\/li\u003e\n\u003cli\u003eThrottle shaft rides in oil impregnated sintered bronze bushings for smooth throttle actuation\u003c\/li\u003e\n\u003cli\u003eThrottle shaft capped to prevent entry\tof debris \u0026amp; contaminates\u003c\/li\u003e\n\u003cli\u003e30cc pump with metal lever. Anti-siphon valve in mainbody to reduce pump pull over\u003c\/li\u003e\n\u003cli\u003eDedicated race-only throttle lever with all unnecessary street attachment points \u0026amp; tangs removed\u003c\/li\u003e\n\u003cli\u003eKnurled (hand adjustable) curb idle screw allows for easy idle adjustment without the use of tools\u003c\/li\u003e\n\u003cli\u003eSet screw for wide open throttle stop adjustment\u003c\/li\u003e\n\u003cli\u003eWedge float provides fuel control while cornering\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\n\t\t\u003cdiv class=\"brandbox\"\u003e\n\t\t\t\u003cdiv class=\"brand-content\"\u003e\n\t\t\t\t\u003cp class=\"brand-title\"\u003eAbout Holley\u003c\/p\u003e\n\t\t\t\t\u003cdiv class=\"brand-main\"\u003e\n\t\t\t\t\t\u003cdiv class=\"brand-image-container\"\u003e\u003cimg class=\"brand-image\" width=\"387\" src=\"\/\/images.holley.com\/387x\/websitebrandimages_holley.jpg\"\u003e\u003c\/div\u003e\n\t\t\t\t\t\u003cp class=\"brand-text\"\u003eHolley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e","brand":"HOLLEY","offers":[{"title":"Default Title","offer_id":62137795903859,"sku":"0-4412BKX","price":831.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/6289\/0099\/files\/45f1969543df23685ad104f373ddaf4a00f308af.jpg?v=1767392359","url":"https:\/\/dspperformancemotorsports.com\/products\/holley-ultra-xp-2bbl-carburetor-0-4412bkx","provider":"DSP PERFORMANCE MOTORSPORTS","version":"1.0","type":"link"}