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Quick Fuel Q-850-PV - Quick Fuel Q-Series Carburetors



Quick Fuel Q-850-PV - Quick Fuel Q-Series Carburetors

Part Number: 793-Q-850-PV

Q-Series 850cfm Drag Race Carb
  • Vacuum secondary
  • $729.61
    Ships 09/02/16
    if Ordered Today
    FREE Shipping

    Quick Fuel Q-850-PV - Quick Fuel Q-Series Carburetors Details

    Vacuum Secondary Carburetors

    Fits Applications Revisions:
  • GMC C15/C1500 Pickup Base 1968-69, 73-80

  • Specifications:

    CFM
    850
    Barrel
    Four
    Choke
    None
    Fuel Inlet
    Dual
    New Or Remanufactured
    New
    Booster Type
    Down-leg
    Finish
    Tumble polished
    Carburetor Flange
    Square bore
    Ford Kickdown
    No
    Fuel
    Gasoline
    Primary Inner Air Bleed Sizes Included
    33
    Primary Jet Size
    76
    Primary Outer Air Bleed Sizes Included
    70
    Primary Power Valve (Hg)
    4.5 Hg
    Quantity
    Sold individually
    Secondary Inner Air Bleed Sizes Included
    33
    Secondary Jet Size
    84
    Secondary Outer Air Bleed Sizes Included
    70
    Secondary Power Valve
    Plug
    Secondary Type
    Vacuum
    Throttle Linkage Type
    Universal


    Performance & Value

    Main Body
  • All aluminum (upgrade from existing designs)
  • Tumbled finish for a high luster that protects against contaminants
  • Recessed air bleeds out of air stream to improve airflow
  • Raised accelerator pump squirter nozzle boss also out of air stream to reduce the possibility of high-speed pullover or "dribbling"

    Metering Blocks
  • CNC-machined from solid aluminum
  • 4 stages of emulsion help break up solid fuel for leaner air/fuel sooner & excellent throttle response
  • Stainless steel idle mixture screw with a superior nylon seal that won't deteriorate over time like cork
  • Machined internal passages (vs. die-cast cored holes) ensure consistent performance and almost no chance of porosity holes cross-talking between passages
  • 4-corner idle system for fine-tuning even with extremely long duration camshafts

    Throttle Body
  • CNC-machined from solid aluminum for a more stable platform than die-cast equivalent
  • Teflon-coated throttle shafts with Teflon ribbon bearings reduce rotational resistance and nearly eliminate the use of the throttle body shaft hole as a bushing (great protection in dirt environments)
  • Mechanical secondary carbs have the Quick Link Secondary Opening System that enables rate adjustment simply by changing links (available opening rates: 40%, 60%, 1:1)
  • Mechanical secondary carbs also have adjustable secondary airflow cam brackets that allow better idle tuning with race-oriented camshaft profiles

    Fuel Bowls
  • Die-cast aluminum for cooler fuel resulting in fewer fuel percolation problems
  • Sight glass to monitor fuel level without risking fuel spillage
  • All standard service replacement parts accepted
  • Floats based on application, i.e. Drag Race Carbs have notched floats & secondary jet extensions

    Vacuum Secondary Carburetors
  • Exclusive billet secondary housing cover
  • Cover has an integrated screw that allows timing & opening rate adjustments with just a simple turn
  • Adjustable housing offers much finer tuning to dial-in application



    Q-Series Mechanical Secondary Carburetor Kits include:
  • Quick Fuel Q-Series Drag Race Carb (650, 750, 850, 950, or 1050 cfm)
  • JEGS Dual Inlet Fuel Line Kit #555-100822
  • JEGS Fuel Pressure Gauge 15 psi #555-41010

  • Does this fit your vehicle?

    Narrow Results

    1968-1970 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: SS

    1986 CHEVROLET C20 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1973-1975 CHEVROLET P30 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1989 CHEVROLET R3500 PICKUP

    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8

    1968-1969 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: MALIBU

    1976-1978 CHEVROLET K20 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975-1976 CHEVROLET CAPRICE

    • Liter: 7.4
    • EngineType: V8
    • SubModel: ESTATE

    1969 GMC C25/C2500 PICKUP

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1969 GMC C25/C2500 SUBURBAN

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1969 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: GREENBRIER

    1970-1971 CHEVROLET EL CAMINO

    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8

    1968 GMC C15/C1500 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1970-1972 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • SubModel: MALIBU
    • EngineType: V8

    1970-1974 CHEVROLET MONTE CARLO

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1975-1976 CHEVROLET IMPALA

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1965-1967 CHEVROLET IMPALA

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1966 CHEVROLET CORVETTE

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1970-1971 GMC P25/P2500 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1973-1974 GMC C35/C3500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1971-1974 CHEVROLET BEL AIR

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1969 CHEVROLET EL CAMINO

    • Liter: 6.5
    • SubModel: CUSTOM
    • CUI: 396
    • EngineType: V8

    1974 CHEVROLET K10 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1974 GMC K15/K1500 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET EL CAMINO

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1979 CHEVROLET P20 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968 GMC C15/C1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1976 CHEVROLET IMPALA

    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8

    1969 GMC K25/K2500 PICKUP

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1976 GMC G35/G3500 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1977-1979 CHEVROLET P30 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET IMPALA

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1976 CHEVROLET G20 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1969 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: CONCOURS ESTATE

    1967 CHEVROLET CORVETTE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1973-1989 GMC P35/P3500 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET C10 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1969 CHEVROLET C30 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1974 GMC K25/K2500 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1979-1986 GMC K3500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968 GMC K15/K1500 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1986 CHEVROLET C20 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1972-1974 CHEVROLET EL CAMINO

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1976 CHEVROLET K10 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968 GMC K25/K2500 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1980 CHEVROLET P30 VAN

    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8

    1986 CHEVROLET C30 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1973-1974 GMC K25/K2500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET KINGSWOOD

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1973-1974 CHEVROLET K30 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1973-1978 GMC C25/C2500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1972 CHEVROLET TOWNSMAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1975-1976 CHEVROLET CAPRICE

    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8

    1968 GMC C25/C2500 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1969 CHEVROLET K20 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1979 GMC P15/P1500 VAN

    • EngineType: V8
    • SubModel: BASE

    1973-1974 CHEVROLET LAGUNA

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1987-1989 GMC R3500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1981-1989 CHEVROLET P30 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET CAPRICE

    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8

    1976 GMC JIMMY

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET TOWNSMAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1973 CHEVROLET K20 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968 GMC C25/C2500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1980-1982 CHEVROLET K30 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1978-1980 CHEVROLET C10 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BIG TEN

    1968 GMC K15/K1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1969 CHEVROLET K30 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1975 CHEVROLET BEL AIR

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1988 CHEVROLET R30 PICKUP

    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8

    1968-1969 CHEVROLET C20 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1969 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: 300 DELUXE

    1970-1971 GMC P35/P3500 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1983-1984 CHEVROLET C20 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1970-1974 CHEVROLET CORVETTE

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1983-1984 CHEVROLET C20 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1979-1986 GMC C2500 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1963 CHEVROLET BEL AIR

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1985 CHEVROLET C20 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1970-1972 CHEVROLET BISCAYNE

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1971-1972 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • EngineType: V8

    1979 CHEVROLET K10 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1976 CHEVROLET P20 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1963 CHEVROLET BISCAYNE

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1968-1969 CHEVROLET CORVETTE

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1987 CHEVROLET R30 PICKUP

    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8

    1973 CHEVROLET CAPRICE

    • Liter: 7.4
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: Y
    • CUI: 454
    • EngineType: V8

    1966 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: SS

    1966-1969 CHEVROLET CAPRICE

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8

    1972 CHEVROLET KINGSWOOD

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1973-1982 CHEVROLET C20 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1980 CHEVROLET K20 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8

    1974 GMC P35/P3500 VAN

    • EngineType: ALL
    • SubModel: MOTORHOME

    1968 GMC C35/C3500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1977-1980 GMC C1500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BIG TEN

    1969 GMC C1500 PICKUP

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1986 CHEVROLET K30 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1973-1974 GMC SPRINT

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: NOMAD

    1969 GMC C35/C3500 PICKUP

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1971-1972 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • SubModel: NOMAD
    • EngineType: V8
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