Way back (didn't know any better) I ran the big yellow Accel super coil w NO ballast in a daily driver 440 barracuda & it never failed and was the easiest starting vehicle I have ever dealt w. Not sure on the power as I didn't have any prior exp to compare it too and it was an inefficient eng/not highly tuned. Not sure but I think Accel rec a .8 ohm ballast w it. EDIT if the 8222 greenpigs referred to is the MSD blaster 2 I think that no ballast required unless you use points as he mentioned that is in the white MSD instruction sheet. I have one that I'm going to run on straight 12V