SKU: 99743206360

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

Sale price$787.48 Regular price$874.98
Save 10%

Pay in installments of $218.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.8 ★★★★★
    Based on 28 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    J
    Verified Purchase
    Julia
    Whiting, US
    ★★★★★ 5
    She loves them, therefore I love them too
    Size: 5.5 Inch, Color: Ring Toy
    My furbaby LOVES these, especially the peanut butter flavored ones. I still regularly brush her teefers, but these do help with dental care.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 6, 2026
    P
    Verified Purchase
    Piano Man
    Draper, US
    ★★★★★ 1
    Made mostly of POLYPROPYLENE PLASTIC and should not be injested.
    Size: 8 Inch - 2 Pack, Color: Tree Branch
    BAD PRODUCT. DO NOT BUY THESE FOR YOUR DOG. They are made mostly of POLYPROPYLENE PLASTIC. It even says on the package - "CAUTION: Product is not intended to be eaten or ingested. If you believe your pet has swallowed a piece, please take away and contact veterinarian if needed. Our dachshund went to town on one of these and had diarrhea for two days and cost us several hundred dollars in vet bills to do x-rays and medicine for the poor dog. What do you think a dog is going to do with a dog chew? Just find another product. This one isn't worth it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 26, 2026
    A
    Verified Purchase
    Amazon Customer
    Carnegie, US
    ★★★★★ 5
    Loved by both my pup and I! I can't say enough good things!!
    Size: Large, Number of Items: 1
    My lab puppy absolutely loves this! And so do I. My 5 month old lab puppy loves to play with us and is not so good at playing by himself. Though he is getting a little better. I use this when we need to keep him occupied or when we need a little break. I bought this for him when we first got him at about 2 months old; even then he had no problems figuring it out. Depending on how much food I put in it, this will keep him busy for quite awhile. My puppy does not usually have much of an attention span, he is always jumping from one toy, bone, or chew to another. But with this I know I can consistently depend on him being entertained for at least 15 to 30 minutes, again, depending on how much food I put in there. "Bob" as we call him, is very well made. I purchased the large one and it holds about 2 cups of food. The yellow top screws off so that you can pour the food in, there is an adjustable opening so if you want to make it harder for your dog you can adjust it and he will have to work harder to get the food out. It screws on quite tight and has never come off while my dog is playing with it even when he carries it around by the top. There is another opening towards the bottom where the food comes out that is also adjustable depending on how easy you want it to be or how big the food is that you are using. Both openings are pretty large and I have never had an issue with putting things in there. I know some people use it to put their dog's food in, as my dog is self fed I have never done that. But I do use Cheerios and all kinds of other cereals and treats but mainly I use other "special" dog foods. I buy moist and dry dog foods that look like they may taste good and use them as treats. My dog thinks he is getting treats and never knows the difference, he loves them. It's healthier than feeding him lots of treats and also a lot cheaper. Using the "Bob" not only keeps him independently entertained but also helps to tire him out. It can be a bit loud as I have tile floors but it is not that bad. It is constructed extremely well. My pup plays very rough with it, he bats it around into walls, furniture etc., drops it down steps, it has taken a beating but it has stood up to my dog's abuse, where many of his other toys have not made it. It is very easy to clean. I plan on purchasing another one for my sister-in-law's pig. She is 70 pounds over weight and hates to move around but obviously loves food. I think that putting her food inside will be just the motivation she needs. And it is so well made that I don't have to worry about giving it to her!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 10, 2014
    T
    Verified Purchase
    Tillea Hurinenko
    Los Angeles, US
    ★★★★★ 5
    Favorite toy
    Size: Small, Number of Items: 1, Size: Small, Number of Items: 1
    This is my dog’s absolute favorite toy. When I fill it, it’ll keep him busy for up to an hour, and even when I don’t fill it, he likes to tip it around to check for missed treats quite often. It’s super sturdy, and just the right size for him (20 lb mini schnauzer).
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 18, 2026
    J
    Verified Purchase
    Jessica Ward
    Lake Worth, US
    ★★★★★ 5
    Perfect Enrichment for my Puppy
    Size: Small, Number of Items: 1
    Amazing!! Super durable and exactly what I was looking for! My dog loves this and it keeps him very busy! It fits about half a cup inside and can be used anywhere.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 1, 2026

    recommand products