Once upon a time I helped put in a hidden nitrous system on a Malibu roundy rounder that the son of one of my friends raced. Sure helped get that overweight sled out of the corners!!!! We also used AFCO coil springs, just strip the paint off them and let em rust up a bit, they look just like the stock ones. Also, if you take a good gas filled racing shock and paint it blue with a NAPA decal on it, few people will notice!! The old style "rams horn" exhaust manifolds flow a lot better then the smogger motor manifolds. Fresh air will help the engine breath better, leave the back of the hood up a couple inches from the cowl. An adjustable proportioning valve in the brake lines will help dial in your brake bias. A bit of front brake will help hold the front end down when applied in the middle of the turn.

It ain't cheating if you don't get caught!!