Mighty Demon Blow-Thru Carburetors operate with up to 18 psi of boost and are available in 650, 750, and 850 cfm. They increase the vacuum signal to the carburetor under boost and enrich calibration. Equipped with annular boost venturi, large screw-in power valve channel restrictors in the metering blocks, and 0.130" needle-and-seat valves in the fuel bowls. The bowls also contain non-collapsible solid nitrophyl floats, unlike their brass counterparts. Air bleeds are appropriately sized. These new calibrations result in a flat fuel curve. Even at higher RPM, the main circuits sustain constant BSFC (Brake Specific Fuel Consumption) values and air-fuel ratios. The idle circuits, which often carry the responsibility for part-throttle cruising, will offer fine non-boosted drivability.

For high-output street engines and race engines, the Mighty Demon delivers the best performance value for the dollar!