Hey, I've been looking for a 92-93 LT1 '278 ECU for a couple days with no luck. It's a stock engine 4AT swap into some pre-war iron, just a nice driver. I am pretty sure I can rewire the ECU plugs and run the 94-95 '8051 ECU set up for the early 4L60E without PWM TCC - are there any issues I am not thinking of? Next, i realize I am going out on a limb and the answer is probably no, but I already have a 96-97 '399 ECU laying around. Will that work if i disable PWM TCC codes or am I asking for trouble? Thanks!