[Rwillia4]

So I did a little touch up on the cap, I think I made the contacts clean enough to be somewhere between new and where it was in teh photo above. I put everything back together and it started up fine. Within a minute it gets crappy, you can hear the change in the exhaust and it idles poorly. Fuel pressure is at 45psi. FAST is remapped with a good file that I know works. I have replaced the coil and cleaned the cap. What is next the MSD distributor or the MSD box? or am I going the wrong direction and it is something else?
When I had it on the road last week as this problem started and I nursed it home, it would "clean out" when you stepped on it sometimes other times it would bog down, it was inconsistant.

I didn't screw with the distributor or the MSD box nor have they gotten wet or have there been any changes to the electrical system.