[Yetiman]

With the MSD setup he doesn't need a balast resistor... but if he indeed has a balast resistor it could be a likely culprit. Could try bypassing it if there is one.

I had an MSD 6AL go bad on me two weeks ago. I had an intermittant misfire as the car warmed up that got worse and worse. The box itself started making noise like ignition noise on a radio (even though i don't have a radio), and finally made a loud pop; and the engine died.

I was running a points distributor, so i was able to bypass the 6al and get home. Mine was not even a month old, and was 'infant death syndrom'.

New box and i'm rockin'... but i installed a terminal block for the wiring so it will be easier to bypass roadside when it flips out again.