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



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

JEGS Part Number: 793-Q-850-PV

Q-Series 850cfm Drag Race Carb
  • Vacuum secondary
    • Fits Applications:
    • 1963
      CHEVROLET
      1965-1989
      CHEVROLET
      1968-1989
      GMC
    • Click to see All

    Quick Fuel Q-850-PV Details

    Vacuum Secondary Carburetors

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

  • Quick Fuel Q-Series Carburetors


    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

  • Items similar to Quick Fuel Q-850-PV

    Quick Fuel Q-850-PV

    CFM
    850
    Choke
    None
    Fuel Inlet
    Dual
    New Or Remanufactured
    New
    Booster Type
    Down-leg
    Carburetor Finish
    Tumble polished
    Carburetor Flange
    Square bore
    Ford Kickdown
    No
    Fuel
    Gasoline
    Number of Barrels
    4
    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
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