625 cfm, Ford kickdown linkage, vacuum secondaries, electric choke, Road Demon series, carb Road Demon is designed for the average street-performance enthusiast with 200 to 350hp.The carburetor is assembled using Quik Release non-stick gaskets, which dont shrink. As a result, the carburetor doesnt lose tune and can be relied upon to provide top performance, even after sitting for extended periods of time. Rated at 625 cfm, the Road Demon has vacuum-operated secondaries and boosters that are neither sensitive to altitude, nor weather changes. It also has good part-throttle drivability and fuel economy, and its pleasing to the eye