MY MSD /Duraspark comparison.
Reply #2 –
I don't know man, my car was breaking up past 4,000rpm and I couldn't figure it out...I replaced the TFI coil with a new replacement coil and it was marginally better, still had the problem...on went a Blaster TFI coil and a SuperConductor wireset and it's just as nice as can be(I had a $50 set of Bosch wires I put on two weeks before the MSD wires).
I would try a good coil/wire combo to see if that helps...Hell, I still need to get my 6al box in.