{"product_id":"holley-ultra-xp-carburetor-0-80805bkx","title":"Holley Ultra XP Carburetor - 0-80805BKX","description":"Xtreme Performance - Holley Ultra XP™ carburetors!  Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features!  They're available in our all-new Hard Core Gray™ hard coat anodized finish with Black™ billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black™ or Red™ metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, 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. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws.  Holley Ultra XP carburetors are the ultimate in square bore race carburetors!\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAluminum Construction (saves 4.5 lbs - 38% weight savings)\u003c\/li\u003e\n\u003cli\u003eShiny with black anodized billet aluminum metering blocks and base plate\u003c\/li\u003e\n\u003cli\u003eDesigned for use on Drag race, circle track, or any high horsepower engines\u003c\/li\u003e\n\u003cli\u003eContoured venturri inlet offers balanced airflow for increased horsepower\u003c\/li\u003e\n\u003cli\u003eAir bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii\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\u003eIntegrated 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 relationship.\u003c\/li\u003e\n\u003cli\u003eHelps maintain good idle control when using radical camshafts.\u003c\/li\u003e\n\u003cli\u003eDual 30cc 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\u003e8AN  (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side\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\u003eElongated (dual pattern) mounting holes allow fitment on intakes with square flange (Holley 4150™ style) or large flange (Holley Dominator® style)\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\u003ePrimary throttle shaft capped to prevent entry of debris \u0026amp; contaminates\u003c\/li\u003e\n\u003cli\u003eThrottle shaft is slabbed and undercut for improved airflow\u003c\/li\u003e\n\u003cli\u003eFactory machined accessory mounting hole for easy addition of adjustable primary  throttle stop. New secondary pump cam lever designed to provide positive throttle stop on secondary side\u003c\/li\u003e\n\u003cli\u003eStainless steel adjustable secondary link. Provides choice of 1:1 or progressivesecondary throttle actuation for ultimate control of secondary opening rate\u003c\/li\u003e\n\u003cli\u003eBaseplate designed with a boss that can be consumer machined for vacuum source\u003c\/li\u003e\n\u003cli\u003eIncludes notched float and jet extensions\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\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e 950 CFM - 4150 - Mechanical Secondaries - Shiny - 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 5-1\/8\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 Shiny with Black Billet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Color:\u003c\/strong\u003e Polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Finish:\u003c\/strong\u003e Polished\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 Downleg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBooster Design:\u003c\/strong\u003e Downleg\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 Professional Race\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM:\u003c\/strong\u003e 950\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM Rating:\u003c\/strong\u003e 950\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 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Polished\/Black\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 950\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\/Black\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 Square\/4150\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 9.75\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 Female\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\u003eLinkage Attached:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Use:\u003c\/strong\u003e No\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 4150\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\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 92\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Main Jet Size:\u003c\/strong\u003e 92\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Power Valve:\u003c\/strong\u003e 4.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Pump Nozzle Size:\u003c\/strong\u003e 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Throttle Bore Diameter:\u003c\/strong\u003e 1.75\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Venturii Diameter:\u003c\/strong\u003e 1.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 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 Nitrophyl\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Jet Extensions:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Main Jet Size:\u003c\/strong\u003e 92\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Pump Nozzle Size:\u003c\/strong\u003e 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Throttle Bore Diameter:\u003c\/strong\u003e 1.750\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Ultra XP\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 1.750 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenturii Size:\u003c\/strong\u003e 1.600 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cp\u003eThis carburetor was designed with a dual mounting pattern, so that it can be installed on a manifold machined for a 4150 or 4500 series carburetor.\u003c\/p\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":49709898662126,"sku":"HLY-0-80805BKX","price":1349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/db39c329b5b794f40429c952fbce0f5c43b5f94a_3b027085-ccfc-4623-b61d-58b483603128.jpg?v=1791512328","url":"https:\/\/elmosspeedshop.com\/products\/holley-ultra-xp-carburetor-0-80805bkx","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}