{"product_id":"classic-double-pumper-carburetor-650-cfm-4150-mechanical-secondaries-gold-dichromate-gasoline-holley","title":"Classic Double Pumper Carburetor 650 CFM 4150 Mechanical Secondaries Gold Dichromate Gasoline Holley","description":"\u003cp\u003eHolley upgraded their two most popular sizes of double pumper with electric chokes. The 650 and 750 CFM models are available in the classic zinc and shiny polished finishes.\u003c\/p\u003e \u003cp\u003eHolley Double Pumper carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors.\u003c\/p\u003e \u003cp\u003eFrom their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile. The Double Pumper is designed for use on lightweight vehicles with a manual transmission or an automatic transmission with a high stall and low rear end gears.\u003c\/p\u003e \u003cp\u003eThe Double Pumper is available in a gold dichromate or tumble polished shiny finish and features dual accelerator pumps for additional fuel under initial acceleration, mechanical secondaries for great performance, dual feed fuel inlets for constant high volume fuel delivery and an electric choke for easy control of engine warm up. Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 years and has powered every Nascar champion since the 60's.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eFeatures and Benefits:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClassic Zinc finish for corrosion resistance and classic Holley looks Optimized street\/strip calibration that works out-of-the-box Electric choke for precise cold start control Mechanical secondaries for awesome tire turning performance Dual accelerator pumps for additional fuel under initial acceleration Dual feed fuel inlets for constant high volume fuel delivery Intended for lightweight vehicles w\/ manual trans or automatics with high stall \u0026amp; low gearing 100 percent wet-flow tested by Holley technicians to assure it arrives ready to run!\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eAssociated Comments:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eNotice - Due to the natural color variations of the dichromate plating process, the plating color may vary from casting to casting (within a carburetor) and from carburetor to carburetor. This is considered normal and is not a cosmetic defect.\u003c\/li\u003e \u003cli\u003eIf you desire a carburetor with no color variation, please shop our black and shiny finish carburetors.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eDetails:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBarrel Quantity: 4.0\u003c\/li\u003e \u003cli\u003eBody Color: Gold Dichromate\u003c\/li\u003e \u003cli\u003eBody Finish: Plated\u003c\/li\u003e \u003cli\u003eBooster: Straight\u003c\/li\u003e \u003cli\u003eBooster Design: Straight\u003c\/li\u003e \u003cli\u003eCFM: 650.0\u003c\/li\u003e \u003cli\u003eCarburetor Material: Aluminum\u003c\/li\u003e \u003cli\u003eCarburetor Use: Performance and Race\u003c\/li\u003e \u003cli\u003eChoke Type: Electric\u003c\/li\u003e \u003cli\u003eCondition: New\u003c\/li\u003e \u003cli\u003eCubic Feet Per Minute Rating: 650.0\u003c\/li\u003e \u003cli\u003eFinish: Gold Dichromate\u003c\/li\u003e \u003cli\u003eFlange Type: Square\/4150\u003c\/li\u003e \u003cli\u003eFuel Type: Gasoline\u003c\/li\u003e \u003cli\u003eFuel Inlet: Dual\u003c\/li\u003e \u003cli\u003eGrade Type: Performance\u003c\/li\u003e \u003cli\u003eLinkage Attached: Yes\u003c\/li\u003e \u003cli\u003eMarine Approved: No\u003c\/li\u003e \u003cli\u003eMarine Use: No\u003c\/li\u003e \u003cli\u003eMaterial: Aluminum\u003c\/li\u003e \u003cli\u003eModel: 4150\u003c\/li\u003e \u003cli\u003eMounting Hole Quantity: 4.0\u003c\/li\u003e \u003cli\u003ePrimary Jet Diameter: 67.0\u003c\/li\u003e \u003cli\u003ePrimary Main Jet: 67.0\u003c\/li\u003e \u003cli\u003ePrimary Power Valve: 6.5\u003c\/li\u003e \u003cli\u003ePrimary Pump Nozzle Size: 28.0\u003c\/li\u003e \u003cli\u003eSecondaries: Mechanical\u003c\/li\u003e \u003cli\u003eSecondary Main Jet: 73.0\u003c\/li\u003e \u003cli\u003eSecondary Pump Nozzle Size: 28.0\u003c\/li\u003e \u003cli\u003eSpacer Included: No\u003c\/li\u003e \u003cli\u003eSupercharged Application: No\u003c\/li\u003e \u003cli\u003eThrottle Bore: 1.688 inch\u003c\/li\u003e \u003cli\u003eVacuum Ports: 1 timed (spark) port, 1 full, and 1 Pcv port\u003c\/li\u003e \u003cli\u003eWarranty: Manufacturer's Limited 90 Day Warranty\u003c\/li\u003e \u003c\/ul\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":47481014616292,"sku":"0-4777CE","price":799.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/6855\/8308\/files\/0-4777CE-BBVL.jpg?v=1773388541","url":"https:\/\/jeeperz-creeperz.com\/products\/classic-double-pumper-carburetor-650-cfm-4150-mechanical-secondaries-gold-dichromate-gasoline-holley","provider":"Jeeperz Creeperz, Inc.","version":"1.0","type":"link"}