why is my airfilter ful of oil ?

Id like to revisit post 11. In it you say the engine quits running when you take the PCV hose off the carb. But does it also quit running if you pull the hose off the PCV. I have seen the hoses themselves plug up.
I think nm9 has a good idea re the seafoam treatment. and hes probably on the money too about the engine wanting to retire. Esp. since you mention hard starting, and blowby in the same post.
I had a slanty like that.It was beyond worn out. I Removed the PCV and gutted it. Then fit a restrictor in there. Now it was a continuous crankcase ventilator. That cleaned up the idle. Didnt do anything for it though under power. It left a pretty good trail.