Jimmy, years ago I ended up with a '84 C4, the original car had the cross-fire injection (bad) and the 4+3 slappy auto. It was a bad car (bad, as in not good) Most of it's technology didn't work. After much frustration, I gutted the car, Put in a tuned port 383, a 5 speed from a camaro, fabbed an aluminum dash with autometer guages (none of the digital worked ) Two Cerullo buckets, (again, the 28 way adjustable seats were crap) Along with gutting the dash, all of the climate control a/c came out, I put in a Vintage Air Mini unit. Weight dropped to 3100 lbs, and it was re-born as the killer of Z-06's It was a fun car street or track, but they do rattle alot