Engine miss under load - ignition concerns

I'm fighting the same issue on a stock 5.9 from a 2000 dakota transplanted into a 65 dart. I've changed everything I can think of. Nothing helps. Does this voltage at the coil hold true on these EFI engines? I've checked the grounds over and over. I'm at a loss.

I'm just not that familiar, but I would guess "yes." Again, RUNNING voltage will be higher. This is because the coil is turning on and off, generating a pulsing which gives an "average" reading on your meter.