The Supercharger Store F1 polished on Kevin's 71 Duster. The engine is a 446 ci built for supercharging . It has ross 8-1 pistons and solid ultradyne blower grind, ported 906 heads, csu carb. The car is under consruction presently doing body work, it has 4 link suspension, tubbed rear, custom 3 inch exhaust with aeromotive fuel system .