LT1 runs, but runs rough..
on my 94 6spd coupe, i originally was led to believe the opti spark unit was bad, so i replaced it. the engine did not run and after some trial and error, i replaced the ICM and the engine fired right up! its running a little rough and feels slightly down on power under acceleration. it has a solid idle but i can tell that there is a miss. the right side converter was glowing almost white and then after sitting for a minute with the engine off, glowing red after my first test drive. i have not checked the timing and did not check for crossed plug wires as i have to be up at 5am for work and its late, lol. any ideas other than timing or crossed wires as to why the engine may run rough and cause the right converter to glow white?