318 running rough...
Well, throughout my troubleshooting, I found that my coil went bad. It quit sparking altogether. Hoping this was somehow tied to my issues I've been having, I replaced it with a MSD high vibration coil. Apparently, this one can be mounted on its side which works better for the space I have. Anyway, I have great spark now, but still have the issues with the timing. I'm thinking Sireland67 may be right about a valve/lifter/cam problem. I'll be taking the valve covers off and checking the lift on them. Any advice for determining what's good or not?