67 twin turbo dart

Are you still getting oil leaks from the main seal(s)? Is it possible the rings didn’t seat on those two cylinders that weren’t firing?
Couldnt tell after the last drive if it was from the rear main, or from the over spray in the bell housing, just playing it cautious and installed the pump to make sure if doesn't happen. That's what I'm thinking is the 4 cylinders that weren't firing properly during initial fire up and drive and dyno didn't seat so, now there's no reason for them not to seat properly.