SKU: 97268322762

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 Aug 4 - Aug 9

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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: 97268322762

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    4.4 ★★★★★
    Based on 12 reviews
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    Verified Purchase
    Kaylin
    Charlottesville, US
    ★★★★★ 1
    Would not recommend
    Color: Black
    Product was terrible, it was not sturdy at all
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 21, 2026
    N
    Verified Purchase
    NIKI73
    Draper, US
    ★★★★★ 5
    Order with confidence!
    Color: Black
    Pleased with my purchase!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026
    C
    coffeeandcode
    Pawtucket, US
    ★★★★★ 4
    Awesome, portable room divider for larger rooms
    Color: Black, Color: Black
    I chose this room divider to use in my son's room that also serves as my home office! It is 72" x 72" in size, so it truly blocks out the other side of the room for optimal privacy. Once it's assembled, it's mildly sturdy - as long as you can bet both ends with the "feet" in line with the ground. I wish that the framework poles had more of an interlocking system so that the divider was easier to erect. I assembled this on carpet, so I had some issues getting the divider to stop moving. It takes a lot of work to set up, as it is massive, so definitely have someone help you. I would suggest adding weights of some sort to the feet of this divider to keep it from shifting. I ended up leaning mine against a bookcase shelf so it wouldn't lean. All and all, this is a great product if you are looking to make a room multipurpose.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 2, 2025
    J
    Verified Purchase
    John Grey
    Bozeman, US
    ★★★★★ 5
    As described
    Color: Black
    Light weight, easy to put together and you can disconnect the ends and just roll the whole thing nice and tight for quick out of the way storage. Pretty sturdy, doesn't fall over if you bump into it, you could use it outside but if there's a lot of light you can see through a tiny bit if you're really close but I only tested this indoors so not sure about patio types
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 18, 2025
    A
    Verified Purchase
    Amyth4
    Birmingham, US
    ★★★★★ 2
    Flimsy - choose something else
    Color: Black
    Very flimsy and barely stands up… better options out there.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 11, 2025

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