Yes, only reason I say that, and not going to start a bashing here, but I had a firecore distributor, and i recently got a MSD distributor and the wires from each were different colors with the strip. I have a MSD 7al2 box I bought in the 80's at some point never used it until a few years ago. The wire color was different and had read allot of threads, but I guess I got lucky when I wired mine up. Was just a suggestion to try, not saying that is your problem, but I would try it to rule it out as a problem.