SKU: 54948225656

XP-Series Carburetor 500CFM Circle Track Alcohol - XP-4412-A

Sale price$437.83 Regular price$486.48
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

XP-Series Carburetor 500CFM Circle Track Alcohol - XP-4412-AOverview: In circle track classes that mandate two barrel carburetors, customizing a street carburetor has been the norm for decades. Not anymore. Designed from the ground up to meet the unique demands of circle track racing, QFT's new XP Series offers the performance benefits of a custom carburetor in an affordable, turnkey, class legal package. At a bare minimum, modifying a standard street carburetor for circle track duty typically involves

Overview:

In circle track classes that mandate two-barrel carburetors, customizing a street carburetor has been the norm for decades. Not anymore. Designed from the ground up to meet the unique demands of circle track racing, QFT's new XP-Series offers the performance benefits of a custom carburetor in an affordable, turnkey, class-legal package. At a bare minimum, modifying a standard street carburetor for circle track duty typically involves changing the throttle-plates, floats, and metering blocks. These custom modifications can easily exceed the cost of a turnkey QFT two-barrel carb while still lacking many of the key features that only a clean-sheet redesign can offer. A high-flow aluminum main body design centers the venturi over the throttle-body assembly. To further increase airflow, QFT centers the air horn over the venturi, removes the choke tower, and carefully profiles the air inlet transition. The result is enhanced airflow and fuel distribution, which improves throttle-response and horsepower. All XP-Series carburetors are equipped with roller bearing seals which provide smoother throttle response, less wear on shaft, and longer life. Available in 500- and 600 cfm sizes, the XP-Series sets a new standard in two-barrel circle track carbs. High-flow aluminum main body with centered venturi for improved performance and better air/fuel distribution Black anodized billet 2-Circuit metering block and throttle body Throttle body incorporates roller bearing seals which provide smoother operation, less wear on shaft, and longer life Anti-siphon check valve in main body to reduce pump pull-over Changeable emulsion bleeds and power valve channel restrictions for better tuning capabilities Dual inlet fuel bowl with #8AN fittings Dual sight glass windows for easy float adjustment Single wedge circle track float Exclusive Black Diamond® coating for enhanced corrosion protection and appearance. Provides a 6% reduction in fuel temperature.

Features:

     

    Application:

    Year Make Model Submodel Engine Size
    Universal

     

    Specs:

    Barrels 2
    Billet Color Black
    Booster Straight
    Brand Quick Fuel
    Carburetor Use Professional Race
    CFM 500
    Choke None
    Circuit 2
    Condition New
    Emission Code 3
    Finish Black
    Fuel Methanol
    Fuel System Carbureted
    High Speed Air Bleed 31
    Idle Air Bleed Size 55
    Marine Use No
    Material Aluminum
    Model XP-Series
    Primary Main Jet 128
    Primary Power Valve 45
    Primary Pump Nozzle Size 55
    Product Type Carburetor
    Secondaries None
    Secondary Main Jet N/A
    Supercharged Application No
    Throttle Bore 1-11/16 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: 54948225656

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    Amazon Vine Reviewer
    Draper, US
    ★★★★★ 5
    Durable duck toy for man’s best friend
    Although it was suggested that this toy would be best for small breeds, I found that it’s durable enough for my 80 pound Irish setter! It has literally become his best friend. He takes it everywhere he goes! There’s a small squeaky noise that comes from the neck area that he has to work to find. I’m sure he will eventually destroy this as he has with all his other toys, but it’s really holding up much better than anticipated. It is well worth the $10 cost.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 9, 2025
    T
    Ted and Katie
    Charlottesville, US
    ★★★★★ 5
    Really cute, well made dog toy. Was a huge hit with our pup
    This toy was a big hit! Pros - love the heavy duty burlap-kinda fabric. Our new puppy has razor sharp teeth but this fabric is holding up really well. - size is great for a variety of breeds - shape is perfect for grabbing onto. Our puppy especially likes picking it up on the neck where the toy is more slender - the extra little feet and wing flaps add some interest that have really kept her occupied Cons - the squeaker is in the neck where the fabric has embellishments and is a little thicker. It's a little hard to activate the squeaker but maybe the toy/stuffing needs to get broken in more and then it will be easier to squeeze that section
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 29, 2025
    L
    Verified Purchase
    Ladybug27
    Cuba, US
    ★★★★★ 5
    Best Balls Ever!!!
    Size: Medium
    These are the best balls ever! We have 2 very active ball loving dogs and these bounce very well and they actually hold up with active play and chewing. They still look brand new after daily use for months!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 15, 2026
    D
    Verified Purchase
    David
    Dallas, US
    ★★★★★ 5
    Finally a ball my power chewers cannot destroy
    Size: Medium
    I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off. One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again. If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 22, 2025
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    Verified Purchase
    Jen Siefert
    Boise, US
    ★★★★★ 5
    My dog LOVES this ball
    Size: Medium, Size: Medium
    Does your dog destroy tennis balls in seconds? Yes? Then your dog NEEDS this ball! It's squishy like a tennis ball, fits in ball launchers (even the cheap ones) and bounces when it hits the ground. My dog has been literally playing with this ball all day and not a single mark on it! The only bad thing is that it does not float. Definitely worth the money! Put it in your cart!
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    Reviewed in the United States on March 8, 2026

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