I have a 95 turbo ls. I had the engine completely re-worked while I was in Kuwait in the military to include cams, pistons, rods, springs, ect. The only thing that I have yet to upgrade is the things that I know nothing about, fuel injectors and ecu. I had a machanic tell me that I needed at least 550 cc injectors and a resistor box. So I bought a set of RC 550 and when I fired the car up it wouldn't run it was so rich. If anyone can help before I waste more money I would appreciate it. By the way if anyone want some 550cc rc injectors let me know. Or trade for the right ones. mikemccullough@aol.com