Plug it all off. PCV is a controlled vacuum leak that may be out of bounds.
Watch the timing light when it drops in gear, if it's dropping timing, you don't really have 18-20 initial. I'd also get it started and crank more timing into it and see if you can turn the idle down. Put 30* of timing on it. See if any of that 30* drops out as you dial it down. If it still won't idle down, you have a big leak somewhere would be my guess. If you can turn rpm down, it's a timing issue.