Ok so i had a local shop install my buscher COP and MSD box, and the car ran fine when i left. Then in the morning i went to start it and it was a hard start sounded like it was running on two cylinders died then did this again a couple of time then started reved to 2 grand slowly went down to normal and, then worked fine again. SO the troubleshooting begain. Buuuut i didn't have to install paperwork, got thrown away with the boxes at the shop..SO i assumed to settings onthe box were wrong, called up buscher and he didn't know the settings on the unit. He told me to send it to him but i need my car and can't really go with out it for a extended period of time. SO i kept searching, so finally i disconnected to box, car starts fine MSD has been know to have some bad boxes so i took it to uti and tested it. well it worked.. Still baffled i hooked everything back up and still it started hard, if the msd box was hooked into the system, So it is a good box bad settings? or can my flash be interfearing, doubt full but i and just going out ther eion this one. Or could it just be that one stupid wire you find after 2 weeks of sweat and it solves everything. SO if someone who has this system or knowledge of it, could help me that would be great, i would like to save myself some money and not have to send it back to Buscher.