OK....so I took the valve cover back off and the gasket is fine. It wasn't flipped. The guy at Advance Auto said it's possible I had it too tight...maybe. I put everything back together and made sure I just snugged the bolts down and 1/4 turn beyond...doesn't seem tight enough to me but what do I know...I'm from the old school (dad's school of tighter is better

). I asked for a torque wrench with in/lbs but he said they didn't have them anymore. If it still leaks, I'm at a my wits end. I'll take it to someone with more patience than I have. I considered applying some RTV to get it to seal. It blew out quite a bit of oil, ran down the sides and back of the engine and slung it all over the undercarriage. It was NOT doing that before. Lost about a quart over a 100 mile trip before it was found. This thing isn't a diesel, why would it have that much pressure inside the valve cover? It has a new PCV valve. Are there any vents that might be clogged I'm not aware of?
But as I said, the engine miss problem has resolved with the new plugs...fix one problem and trigger another one.

I guess I'll know tomorrow...I'm going to let it sit overnight to "set".