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Serious drag racing demand a serious drag racing carburetor, and the QFX-Series stands as the flagship model in QFT's lineup. Raised air horns improve entry angle into the venturi while ensuring undisrupted flow over the air bleeds. Annular boosters with CNC-machined billet aluminum inserts provide increased air flow, a stronger signal, and less turbulence. QFX carbs offer unparalleled fuel atomization with annular boosters specific for either gas, methanol, or E85 fuels. Five-emulsion billet metering blocks and four-corner idle circuits offer flexible tunability that today's high-horsepower engines demand. To cover a broad range of applications, methanol- and E85-compatible models, as well as two- and three-circuit fuel systems, are available. Ready to run out of the box, the QFX-Series carburetor will help you get to the winner's circle.
Quick Fuel QFX Series 4700 Carburetor 1050CFM 2-Circuit - FX-4700
$1,749.95
Features:
- QFX aluminum main body w/raised venturi
- Billet aluminum metering blocks with screw in restrictions
- Aluminum fuel bowls with dual sight windows and fuel inlets
- Nitrophyl® Floats (notched rear) and jet extensions
- Viton .130" Needles and Seats
- Billet Aluminum annular booster inserts
- QuickLink™ adjustable secondary opening adjustment
- Hand assembled and engine tested
Product Specifications:
- Product Details: 1050 CFM - 4500 - Mechanical Secondaries - Shiny - Gasoline
- Adjustable Air Bleeds: Yes
- Adjustable Emulsion Bleeds: Yes
- Adjustable Idle Feed Restrictors: Yes
- Air Cleaner Flange Diameter: 7 1/4
- Barrel Quantity: 4
- Barrels: 4
- Barrels Quantity: 4
- Billet Color: Red
- Body Color: Polished Aluminum
- Body Finish: Polished
- Body Material: Aluminum
- Booster: Annular
- Booster Design: Annular
- Carburetor Use: Professional Race
- CFM: 1050
- CFM Rating: 1050
- Choke: None
- Choke Type: None
- Circuit Count: 2
- Color: Polished/Red
- Condition: New
- Cubic Feet Per Minute Rating: 1050
- Finish: Shiny
- Flange Shape: Square
- Flange Type: Dominator/4500
- Float Level: Externally Adjustable
- Fuel: Gasoline
- Fuel Inlet Center to Center: 11.5
- Fuel Inlet Count: Dual
- Fuel Inlet Type: 5/8-18 Inverted Flare
- Fuel System: Carbureted
- Fuel Type: Gasoline
- Gasket Or Seal Included: Yes
- Grade Type: Drag Racing
- Linkage Attached: Yes
- Marine Approved: No
- Marine Use: No
- Material: Aluminum
- Meter Block Material: Billet Aluminum
- Metering Block Color: Red
- Model: 4500
- Mounting Hardware Included: No
- Mounting Hole Quantity: 4
- Part Type: Carburetor
- Primary Float Type: Center Hung Nitrophyl
- Primary Main Jet Size: 84
- Primary Power Valve: 35
- Primary Pump Nozzle Size: 35
- Primary Throttle Bore Diameter: 2
- Primary Venturii Diameter: 1.71
- Product Type: Carburetor
- Secondaries: Mechanical
- Secondary Barrel Type: Mechanical
- Secondary Float Type: Center Hung Notched Nitrophyl
- Secondary Jet Extensions: Yes
- Secondary Main Jet Size: 92
- Secondary Throttle Bore Diameter: 2.000
- Series: QFX-Series
- Supercharged Application: No
- Throttle Bore Diameter: 2.000 inch
- Vacuum Ports: None