Reply to "My engine strarted popping last night."

Thanks Marlin.
It was early in the morning when I wrote that. The PCV valve I installed goes into the manifold, so to get to the carb the oil would have to go up steam. The Plugs are NGK. I know hotter plugs are less likely to foul, but will it resist fouling while burning a little oil.
If the drain backs are clogged would that starve the crank bearings? I did about 100 miles of hard driving before the problem developed, so I think that if I had starved the crank I would already have more serious problems.
I will do the other things, but I am going to try new plugs first. If it runs well with new plugs, then that is a start.
I will have the box checked. The distributor cap looks brand new, and I have another MSD cap in a box, so I know the current one is at least the second one since the rebuild was done 10 years ago. I had it off to get the trans out. The plug wires don't look as new.