Lift / Slapper bars on my Early Dart Dragcar

Love the car, very similer concept to mine. I have the ss springs on mine and it will only 60' in the 1.70's(of course I'm a mile high out here). What's your rear gear? Seems to hook good, a little dance but looked good to me! What kind of tire pressure you running?
4.10's with a 26x 8.5x15 slicks and a Powergilde.I run 13 psi in the slicks ...