If you don't have hours to spend accumulating all these small parts, then PROFORM's performance rebuild kit is the perfect solution. The kit includes two size 110 machined needle and seat assemblies, needle and seat adjustment screws and nuts, two 30cc accelerator pump diaphragms, a high flow 4-window size 4.5 power valve, four non-stick precision die-cut gaskets for metering blocks, a non-stick precision die-cut gaskets for the main body/throttle body connection, a non-stick precision die-cut gasket for the throttle body/manifold seal, assorted rubber, metal, nylon and paper seals, and other miscellaneous items necessary for a successful rebuild. Can be used with any racing gasoline.

Features:
for PROFORM/Holley® HP 850-1050 CFM Carburetors
  • Includes Needle & Seats; Accelerator Pump Diaphragms; & Nylon Inlet Nut and Bowl Screw Gaskets
  • PROFORM Parts Brand Product
  • Sold as One Kit
  • More From This Category

    Quick Fuel Standard Main Jet, Gas, #63, .063 in., Pair

    Quick Fuel Standard Main Jet, Gas, #63, .063 in., Pair

    $14.06

    Proflow Fuel Line kit, Holley 4150 -6 AN, Single Inlet, Swivel-Seal, Stainless Steel Hose, Black

    Proflow Fuel Line kit, Holley 4150 -6 AN, Single Inlet, Swivel-Seal, Stainless Steel Hose, Black

    $132.91

    Holley Accelerator Pump Discharge Nozzles, Squirters, .037 in, Tube Pair

    Holley Accelerator Pump Discharge Nozzles, Squirters, .037 in, Tube Pair

    $76.56

    Holley Air Bleed, Replaceable, 10-32, Size 25, Set of 10

    Holley Air Bleed, Replaceable, 10-32, Size 25, Set of 10

    $44.97