So after trying new tube seals twice I figure the problem is beyond the seals. My best guess would be a warped valve cover or a crack @ cylinder two. This is the only one leakin. Tried O'Reilly brand then OEM. #2 leaks enough to cause intermittent miss fires. Basically it fills with oil enough to completely cover the plug. Any thoughts?

 

I had a similar issue. I tried 3 different gasket sets, and still leaked into 2 of the 4 spark plug holes. I finally gooped up the donuts with permeates and fixed the issue. You could have leaky cam mount orings, too. There's like 3 of one size and one of another size. You have to remove the rocker girdle to replace them, then adjust valves. See Eric The Car Guy for how to on this job.