[jeffcoslacker]

Well that's better....yeah if you'd holed a piston you'd have all hella oil on that plug.
Interesting that plug should be wet fouled with fuel if that hole is dead.
Let it cool down, restart and see if the exhaust runner from that cylinder stays cold as the others warm up. Sounds like it may be running, just very weak.

It's not just missing at idle, is it? If it seems to overcome it as rpms rise, you could be dealing with a catastrophic vacuum leak here too...bad intake gasket, cracked intake runner, etc.

let's see. You swapped injectors and no change, you verified the miss didn't just move to the other cylinder after the swap I'm sure....pretty easy to pull that valve cover and watch the followers operate the valves while it runs...see if you got a dead valve or a broken follower or something...