hello i am having a little problem with my camaro it is 1985 tpi injected and when this car is cold it will boil the back tires right off of it, runs great and clean. but the problem arises when the engine warms up, once it does, it seems like it develops a miss below 3000-3500 rpm significant less power. but let it cool off start it up and got yer 5 minutes of fame with clean running. i have changed to platinum plugs, accel supercoil and new cap and rotor and does not seem to cure this. no service engine light except from startup when it is testing it so no codes are being thrown. can anyone help me with my dilemma? thanks