Got my buddy’s Supercharger installed last week and got it on the dyno. 2003 Mustang GT auto, H pipe, catback, tb/plenum, Vortech V-1 @ 10lbs with aftercooler, car made 388 rwhp. Ls1 Camaro Z28 has LT headers, y pipe, catback, lid and is a 6 speed. 50-115 roll (gt doesnt have DR’s and just spins from a low roll)
That isn’t too bad considering it is a 5.7l 6 speed car vs a 4.6l auto and the race was from a roll. Slap some slicks on the stang and go from a dig rich!!