TorqStorm® Slant 6 Supercharger Kit

Never on a dyno, but back in 1974, took my wife's 65 Valiant 4dr sdn. to the track. 170 slant six, 904, 7 1/4 rear ratio unknown. First pass was 22.8 did some at track tweeking, and got to 18.9, Carb was only opening a little more then half way, on the first pass.