Ignition problem I think?

Yeah changeing the pick up seemes like a good idea so i just replaced the whole distributor and the problem still exsisted it even seemed to get worse. That distributor was old and cheap looking I was going to replace it any way. Msd box is on it's way back to dealer for exchange. Could the pick up be why my old ignition system went as well? I dont think it's the coil because i have two of them new and switched them and the same problem exsisted so I think I can rule that out right? So it has to be the box right? Thank you guy's for all your input and help I really am greatfull