SKU: 30997536791

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

Sale price$437.83 Regular price$486.48
Save 10%

Pay in installments of $121.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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: 30997536791

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.1 ★★★★★
    Based on 18 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    A
    Verified Purchase
    Amazon Customer
    Charlottesville, US
    ★★★★★ 1
    No for aggressive chewer waste of money
    Color: Blue/Medium, Size: Blue, Color: Blue/Medium, Size: Blue
    Within 10 minutes she destroyed it
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 1, 2026
    M
    Verified Purchase
    Maria M.
    Omaha, US
    ★★★★★ 5
    Favorite toy!
    Color: Orange/Large, Size: Orange
    My dog lives these!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 23, 2026
    A
    Verified Purchase
    Alyssa G.
    New York, US
    ★★★★★ 5
    Great bowl, would love this in a larger size
    Color: blue
    This is a great way to treat your dog! I filled it with a bit of plain yogurt drink diluted with water, and my dog absolutely loved it. It only took him about 3-5 minutes to finish it, but he’s about 60lbs, so maybe a bigger size bowl would be better for him. Max capacity of this one is 190 ml. You do have to monitor your dog with this bowl - mine tried to dismantle the bowl when it was empty, trying to get more out of it. Overall I think it’s a fun way to get your dog to drink a little bit more with diluted yogurt, broth, etc.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    A
    Verified Purchase
    Amazon Customer
    Phoenix, US
    ★★★★★ 5
    My dog loves it!
    Color: black
    Kudos to whomever created this! I have a super attached (med) dog that follows me from room to room alllll day. The first time I put this down he went right for it and didn’t even notice i had left the deck. He is very food driven. I used bone broth and pumpkin puree, which was a hit but once I used the apple sauce… HUGE hit. My only complaint is that it doesn’t come in an XL size. My dog can empty it in under 3 minutes..so he doesn’t get relaxed or sleepy! it does splash out a bit from the top so I use it on his food mat or outside..my sister can’t stand the noise the ball makes. I wasn’t diluting enough so the ball doesn’t move smoothly in the video, but it really does work! The cover is very well made and sturdy. I didn’t notice it sliding around at all. My dog also did not try to get the ball out (loves to tear apart toys) or tip it over, but I could see that happening. I wouldn’t use unsupervised unless you have a small dog. Please make a larger size!!!!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 3, 2026
    J
    Verified Purchase
    Jen
    Chelsea, US
    ★★★★★ 3
    Works but the bowl is wacky
    Color: blue, Color: blue
    This slow feeder is actually a very good idea and my dog likes it. I blend plain, unsweetened yogurt with a little powdered pumpkin & apple pectin and thin it down with water so the roller ball can easily rotate. It's sturdy and it doesn't slip on the floor, which is good. However, I give it only three stars because the bowl inside is a ridiculous design. Instead of the inside surface being a gently sloping, smooth surface, the "legs" underneath protrude up through the inside (see photo). It makes stirring and cleanup much more difficult than it needs to be. Presumably, it's made using injection molding so it should be easy to design it with a smooth finish.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 19, 2026

    recommand products