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.