Won't Start need advice, Please read....

I may have missed this if it was posted earlier, but check voltage at the coil cranking it or with it running. I recently went through the same issue with an excel coil that I mounted vertically :banghead:. My car would run for a few seconds start cutting up then die and wouldn't restart. Checked voltage at the coil while trying to start and when it would run for a few seconds and only had 3.5-4 volts. Swapped in my old Blaster 3 and voltage jumped up to spec and has been running since. Just a thought