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Quick Fuel QFX Carburetors


Quick Fuel
Quick Fuel QFX Carburetors

Product images may differ from actual product appearance.

For serious drag race applications, all-aluminum Quick Fuel QFX Carburetors were developed with the racer in mind. A distinctive lightweight main body with lengthened venturi offers more mid-range torque, which is great for both throttle stop and bracket racing. Heads-up racers benefit from the raised intermediate system that provides a stronger signal and better flow to the booster venturi.

QFX Carbs come with all-new billet metering blocks designed for each fuel type: gas, methanol, and E85. Strong and reliable cast aluminum fuel bowls have dual threaded fuel inlets & dual sight glass for simple float level setting. Dedicated floats ensure maximum performance without additional upgrades. CNC'd billet aluminum booster inserts provide refined air entry/exit for improved fuel emulsion resulting in superior combustion (gas carbs have 12 discharge holes compared to the standard 8).

Features:
  • Range: 525 to 1450 cfm (some carburetors available in a kit*)
  • Purpose-built for drag racing
  • Hand assembled & engine tested
  • Lightweight aluminum construction
  • Main body with extended venturi for greater mid-range torque
  • Billet metering blocks specific to fuel
  • Cast aluminum fuel bowls
  • Easy float level adjustment
  • Annular boosters
  • CNC-machined billet aluminum booster inserts provide enhanced air entry/exit, improved fuel emulsion, and superior combustion
  • External linkage with four links to choose the amount of primary throttle opening before the secondaries open: Moderate Progressive (25%), Medium Progressive (40%), Full Progressive (50%), and 1:1

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    *Kits include: specified QFX Carburetor, JEGS Fuel Log #555-15601, and JEGS Fuel Pressure Gauge #555-41010.


  • 27 Products
    Gasoline

    793-FX-4750
    750cfm QFX 4-bbl Carburetor
  • 2-Circuit
  • 1.700" Venturi x 2.000" Throttle Bore
  • $996.88
    Order Today Ships 12/08/14

    793-FX-4700
    1050cfm QFX 4-bbl Carburetor
  • 2-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • $996.88
    Order Today Ships 11/28/14

    793-FX-4710
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • $1,029.17
    Order Today Ships 11/28/14

    793-FX-4710-R
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • Remanufactured
  • Was: $1,029.17
    Now: $800.99
    Order Today Ships 12/08/14

    793-FX-4710K
    1050cfm QFX 4-bbl Carburetor Kit
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • Includes carb, fuel log, and fuel pressure gauge
  • Easy Kits
    $1,189.15
    Order Today Ships 11/28/14

    793-FX-4710-2
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • For dual 4-bbl intake
  • $1,029.17
    Order Today Ships 12/08/14

    793-FX-4710-1
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.750" Venturi x 2.000" Throttle Bore
  • $1,070.34
    Order Today Ships 12/08/14

    793-FX-4710-3
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.750" Venturi x 2.000" Throttle Bore
  • For dual 4-bbl intake
  • $1,070.34
    Order Today Ships 12/08/14

    793-FX-4711
    1150cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.800" Venturi x 2.000" Throttle Bore
  • $1,109.88
    Order Today Ships 11/28/14

    793-FX-4711K
    1150cfm QFX 4-bbl Carburetor Kit
  • 3-Circuit
  • 1.800" Venturi x 2.000" Throttle Bore
  • Includes carb, fuel log, and fuel pressure gauge
  • Easy Kits
    $1,269.86
    Order Today Ships 11/28/14

    793-FX-4711-2
    1150cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.800" Venturi x 2.000" Throttle Bore
  • For dual 4-bbl intake
  • $1,109.88
    Order Today Ships 12/08/14

    793-FX-4711-1
    1150cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.825" Venturi x 2.000" Throttle Bore
  • $1,154.29
    Order Today Ships 12/08/14

    793-FX-4711-3
    1150cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.825" Venturi x 2.000" Throtttle Bore
  • For dual 4-bbl intake
  • $1,154.29
    Order Today Ships 12/08/14

    793-FX-4712
    1250cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.900" Venturi x 2.125" Throttle Bore
  • $1,177.14
    Order Today Ships 11/28/14

    793-FX-4712K
    1250cfm QFX 4-bbl Carburetor Kit
  • 3-Circuit
  • 1.900" Venturi x 2.125" Throttle Bore
  • Includes carb, fuel log, and fuel pressure gauge
  • Easy Kits
    $1,337.12
    Order Today Ships 11/28/14

    793-FX-4712-2
    1250cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.900" Venturi x 2.125" Throttle Bore
  • For dual 4-bbl intake
  • $1,177.14
    Order Today Ships 12/08/14

    793-FX-4714
    1450cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 2.000" Venturi x 2.250" Throttle Bore
  • $1,273.21
    Order Today Ships 11/28/14

    793-FX-4714K
    1450cfm QFX 4-bbl Carburetor Kit
  • 3-Circuit
  • 2.000" Venturi x 2.250" Throttle Bore
  • Includes carb, fuel log, and fuel pressure gauge
  • Easy Kits
    $1,433.19
    Order Today Ships 11/28/14

    793-FX-4714-2
    1450cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 2.000" Venturi x 2.250" Throttle Bore
  • For dual 4-bbl intake
  • $1,273.21
    Order Today Ships 12/08/14

    793-FX-2710
    525cfm QFX 2-bbl Carburetor
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • $1,008.99
    Order Today Ships 12/08/14

    793-FX-2711
    575cfm QFX 2-bbl Carburetor
  • 3-Circuit
  • 1.800" Venturi x 2.000" Throttle Bore
  • $1,076.25
    Order Today Ships 12/08/14

    793-FX-2712
    625cfm QFX 2-bbl Carburetor
  • 3-Circuit
  • 1.900" Venturi x 2.125" Throttle Bore
  • $1,143.52
    Order Today Ships 12/08/14

    793-FX-2714
    725cfm QFX 2-bbl Carburetor
  • 3-Circuit
  • 2.000" Venturi x 2.250" Throttle Bore
  • $1,235.00
    Order Today Ships 12/08/14
    Alcohol

    793-FX-4710-A
    1050cfm QFX 4-bbl Carburetor
  • 2-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • $1,177.14
    Order Today Ships 11/28/14

    793-FX-4710AK
    1050cfm QFX 4-bbl Carburetor Kit
  • 2-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • Includes carb, fuel log, and fuel pressure gauge
  • Easy Kits
    $1,320.97
    Order Today Ships 11/28/14

    793-FX-4711-A
    1150cfm QFX 4-bbl Carburetor
  • 2-Circuit
  • 1.800" Venturi x 2.000" Throttle Bore
  • $1,177.14
    Order Today Ships 11/28/14
    E85

    793-FX-4710-E85
    1050cfm QFX 4-bbl Carburetor
  • 3-Circuit
  • 1.710" Venturi x 2.000" Throttle Bore
  • $1,151.21
    Order Today Ships 12/08/14

    27 Products