Wondering what air pressure to start out at, new combo. 68 cuda, ladder bars, coil overs, glass hood, bumpers, lexan windows. 446 unported indy sr's, indy single plane, 950 proform carb, 607,610 comp solid cam, 12.5 wiseco pistons, 2" hooker fenderwells. 727 griner brake, 4500 lupo converter, delay box. 8 3/4, 5.13 gear, 14x32 MTs. 1/8 mile only