Sorry I did'nt say what I was working on. It's a 68 dart with a stroker small block in it. Beings how it would fire off and run I assumed it was getting spark and fuel. But with it sputtering kinda like a miss I was thinking electrical. Thats why I was leaning towards the orange box. No I have'nt really got down and checked things out just yet, as I just towed it home and stuck it in the garage last night and did'nt get into it. I figured I would do some detective work todays and hopefully find whats wrong. No i did'nt clamp ground to engine block I clamped it to what I was welding on. Thanks for your insight. I will be checking everything you mentioned if I don't get lucky and find it right away.