Okay so I know absolutley nothing about optispark or lt1 ignition. I've got a good deal being thrown at me for 96 Forumla that the man says has a fresh rebuild and it looks great. He says he is 99% sure that is the opti unit because he has power all the way to the coil and through the coil wire but no output out of the opti unit...What is the worst case scenario of problems and what does this sound like it could be?

Josh

 

You didn't really tell us what the car is doing so we can help you.