Holley’s Ultra XP 2bbl carburetor designed for E85 fuel continues to improve upon the original 0-4412 2bbl that has been successful on circle tracks for decades. It has an abundance of new features and improvements starting with the aluminum construction for a 50% weight savings when compared to the zinc version.
It also features Holley’s Hard Core Gray coating for corrosion protection. This carb features no choke tower and an all new air entry area for smoother air flow, yet it retains the critical venturi and throttle bore dimensions for rule racing. It also features a large capacity XP fuel bowl, wedged float, dedicated race-only throttle lever, billet metering block and base plate, and much more.
