SKU: 99743206360

QFX Series 4700 Carburetor 1050CFM 2-Circuit - FX-4700

Sale price$787.48 Regular price$874.98
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

QFX Series 4700 Carburetor 1050CFM 2-Circuit - FX-4700Overview: 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

Overview:

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.
Even a carburetor that performs great can still be an eyesore, but it doesn't have to be that way. Quick Fuel Technology's proprietary Black Diamond® coating offers excellent corrosion resistance as well as a durable finish that easily stands up to dirt and oil. In addition to great looks, the PTFE coating reduces fuel temperature by six percent for improved performance.

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

Features:

     

    Application:

    Year Make Model Submodel Engine Size
    Universal

     

    Specs:

    Barrels 4
    Billet Color Red
    Booster Annular
    Brand Quick Fuel
    Carburetor Use Professional Race
    CFM 1050
    Choke None
    Circuit 2
    Condition New
    Emission Code 4
    Finish Shiny
    Fuel Gasoline
    Fuel System Carbureted
    High Speed Air Bleed 31
    Idle Air Bleed Size 63
    Marine Use No
    Material Aluminum
    Model FX Series
    Primary Main Jet 84
    Primary Power Valve 35
    Primary Pump Nozzle Size 35
    Product Type Carburetor
    Secondaries Mechanical
    Secondary Main Jet 92
    Supercharged Application No
    Throttle Bore 2.000 inch
    Warning California Proposition 65
    Warranty Limited 90 Day
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 99743206360

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    Amazon Customer
    Whiting, US
    ★★★★★ 5
    Good healthy snack choice
    Flavor Name: Mango, Size: 1 Count (Pack of 12)
    Nice, dense, great flavor. Perfect snack
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    Reviewed in the United States on April 22, 2026
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    Live to read
    Waukegan, US
    ★★★★★ 5
    Pretty good, especially for this price point.
    Color: Beige, Size: 21.5"- 1 Panel
    This is merely a piece of cloth stretched between the frame borders, but it works perfectly. It arrived quickly, all parts present and in good condition. I didn't put the castors on, as it will be more or less always in one position. I simply attached some felt sliders on the bottom to prevent scratching the floor and to allow clearance for the center screw (which is not flush fit). Overall, a reasonable deal for the price point.
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    Reviewed in the United States on May 30, 2026
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    melissa mcpherson
    New York, US
    ★★★★★ 5
    Easy to manage
    Color: Black, Size: 88"- 4 Panel
    Sturdy, easy to manage and roll around. The material for the walls is of a decent ply as well
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    Reviewed in the United States on May 24, 2026
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    Samson Yu
    Chelsea, US
    ★★★★★ 4
    Great product!
    Color: Beige, Size: 88"- 4 Panel
    Worked well and it was easy to roll around and fold. The size is great and has a good weight to it. Very sturdy, I plan to buy more
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    Reviewed in the United States on February 10, 2026
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    J.K.
    Charlottesville, US
    ★★★★★ 5
    Wonderful Room Partition !
    Color: Black, Size: 88"- 4 Panel
    This product is made very well, packaged, and assembled with no problems. All parts and tools are included (except a Phillips screwdriver.) I put this item all together by myself on a bed to make it easy and simple. I made sure that every screw head was attached where the recessed dimples are located on the vertical poles, just don't overtighten anything. Everything fits like a charm, good quality, looks great, perfect height, rolls with ease, proper privacy, really impressive ! I got the 4-panel in black color. I would certainly buy this item again ! Thank you !
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    Reviewed in the United States on September 26, 2025

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