oil and instant fouling

[theastronaut]

Originally Posted by wl_walker

I also have a bit of smoke coming form the crankcase. When I remove the PCV I see it. Might be combustion in the 'bad' cylinders pushing past the intake guide after the exhaust valve closes?

On my old autocross car with poor ring seal, I had to add a catch can/air oil separator to keep oil mist/blowby from getting into the intake through the pcv system. Its worth making a temporary can from and old bottle and some pot scrubbers to separate oil from air before it goes into the intake to see if that helps any.