A complete rebuild kit for 4412 and 80583 500 CFM racing carburetors, with everything needed to refresh the carburetor and get back on track. Sold as each (1). Kit contents: - 3.5 high-flow power valve - .110 high-flow needle & seat - Blue re-useable racing gasket - 30cc Buna accelerator pump The blue re-useable racing gaskets make tear-downs and tuning quick and clean — no scraping or one-time gaskets between adjustments. 7 in stock.
New Holley 650 CFM Series oval-track carburetor — all-aluminum, square-bore, mechanical secondary, dual feed. Built on Holley HP main body with NASCAR-approved metering blocks.
New Holley 4412XP CT 500 CFM Stage 3 Series — 2-barrel, square bore, single feed. All-aluminum Ultra XP build with a milled metering-plate surface for a better gasket seal. NASCAR-approved Late Model divisions.
New Holley 4412-S CT 500 CFM Stage 3 Series — 2-barrel, square bore, single feed. Milled metering-plate surface for a better gasket seal, new Holley casting good for an extra 5–8 HP. Passes all NASCAR Go/No-Go gauge tests and is IMCA legal.