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These Quick Fuel Q-Series carburetors are ideal for drag racing applications. They feature the Proform high-flow main body, which includes either down-leg or annular boosters, screw-in idle and high-speed air bleeds, accelerator pump discharge nozzles, and a blended venturi area. These carburetors have CNC-machined billet metering blocks with 4-stage emulsion to provide more precise fuel metering, improve throttle response, and give a more uniform fuel performance curve. Q-Series carbs have a CNC-machined billet throttle body base plate assembly to provide an exceptional blend of strength and perfection. The base plates feature slabbed throttle shafts, used in conjunction with low-profile button-head screws, to maximize airflow and performance. Other benefits are an adjustable secondary pump cam bracket, except for the Pro Vac series, allowing fine tuning of the secondary system. On Pro Vac models, the vacuum secondary is adjustable and includes a billet cover. Standard fuel bowls include notched floats and jet extensions for drag race specific applications.
Warranty
Results 1-1 of 1
Suggested Parts: Parts that may improve the performance or installation of part number QFT-Q-850.
Results 1-29 of 29
Fuel Line, Braided Stainless Steel, Holley, 4150, -8 AN Inlet, Kit
Part Number: AER-FCP0134
Estimated Ship Date: 6/26/2012
Carburetor Studs, Black Oxide, 5/16-18/24 in. x 1.700 in. Long, Set of 4
Part Number: ARP-200-2401
Estimated Ship Date: 5/29/2012
Air Cleaner Gaskets, 5.125 in., Set of 3
Part Number: HLY-108-4
Jet Extensions, All Demon Carburetors, Holley 4150/4160/4500, Screw-In, Pair
Part Number: HLY-122-5000
Throttle Lever Studs, 1/4 in., 5/16 in., 7/32 in., 3/8 in., Universal, Kit
Part Number: HLY-20-2
Throttle Lever Stud, 7/32 in. Stud, Universal, Each
Part Number: HLY-20-37
Throttle Lever Stud, 1/4 in. Stud, Universal, Each
Part Number: HLY-20-38
Throttle Lever Extension, 4150/4150HP/4160, Mopar, Each
Part Number: HLY-20-7
Throttle Cable Bracket, Steel, Chrome, Holley, 4150/4160, Each
Part Number: HLY-20-88
Carburetor Jets, Gasoline, Brass, 1/4 in.-32, Sizes 64-99, Two of Each Size, Kit
Part Number: HLY-36-181
Air Bleed Kit, Brass, Screw-In, 23-78 Range, Holley, 4500 HP/4150 HP, Kit
Part Number: HLY-36-240
Carburetor Dust Cover, Plastic, Fits Holley Thermoquad, Quadrajet with 5 1/8 in. Diameter Neck, Each
Part Number: MOR-65802
Carburetor Drain Cup, Plastic, Blue, Channeled Handle, Each
Part Number: MOR-65805
Carburetor Mounting Gasket, Nitrile Rubber Composite, 4-Barrel, Square Bore, Open Center, .063 in. Thick, Each
Part Number: MRG-54
Fuel Line, Braided Nylon, Aluminum, Q-Series, Holley, -6 AN Inlet, 7/8 in.-20 Thread, Each
Part Number: QFT-34-4150-6
Fuel Line, Braided Nylon, Aluminum, Q-Series, Holley, -8 AN Inlet, 7/8 in.-20 Thread, Each
Part Number: QFT-34-4150-8
Accelorator Pump Cams, Plastic, Holley/Quick Fuel, Set of 8
Part Number: QFT-41-100
Book, "Super Tuning and Modifying Holley Carburetors", 144 Pages, Paperback, Each
Part Number: SAD-SA08
Carburetor Mounting Gaskets, Nitrile Rubber Composite, 4-Barrel, Square Bore, Open Center, Set of 10
Part Number: SCE-354
Air Cleaner Gaskets, 5.125 in. Diameter, .060 in. Thickness, Set of 3
Part Number: SUM-200054
Jet Extensions, Brass, Holley 4150/4160/4500, Screw-In, Pair
Part Number: SUM-200150
Gasket, Fuel Bowl, Holley 4150 Carburetors, Reusable, Set
Part Number: SUM-200833
Carburetor Jets, Gasoline, Brass, 1/4 in.-32, Sizes, Two of Each Size, Kit
Part Number: SUM-210230
Fuel Line, Braided Stainless Steel, Aluminum, Holley, 4150, -8 AN Inlet, Each
Part Number: SUM-220100
Fuel Line, Braided Stainless Steel/Aluminum, Natural/Black Anodized, Holley, 4150, -8 AN Inlet, Kit
Part Number: SUM-220100B
Fuel Line, Braided Stainless Steel/Aluminum, Natural/Nickel Plated, Holley, 4150, -8 AN Inlet, Kit
Part Number: SUM-220100N
Carburetor Mounting Gasket, Paper, 4-Barrel, Square Bore, Open Center, Each
Part Number: SUM-G1418
Carburetor Mounting Gasket, Cellulose, Nitrile Composition, 4-Barrel, Square Bore, Open Center, Each
Part Number: TRD-2069
Test Gauge, Vacuum, Pressure, Black Face, 2 5/8 in. Diameter, 2 ft. Hose Length, Each
Part Number: WMR-W80594
Repair Parts: Components of QFT-Q-850 that may require future replacement due to normal wear and tear.
Results 1-2 of 2
MIXTURE SCREW SEALS
Part Number: QFT-27-100
Carburetor Rebuild Kit, Performance, Non-Stick Blue Gaskets, Quick Fuel, Professional, Q-Series, Kit
Part Number: QFT-3-210
Richard Lasseter made hot rod history way back in 1984 when his 1970 Buick Gran Sport Stage 1 automa…
Carburetor, Gasoline, 4150, 750 cfm, 4-Barrel, Down-Leg, Billet Metering Blocks, Dual Inlet, Each
Carburetor, Gasoline, 4150, 650 cfm, 4-Barrel, Down-Leg, Billet Metering Blocks, Dual Inlet, Each