do you have one of those retarded valve cover breather filters? those are a big no no. ESPECIALLY on a boosted car. on a NA car, having that tube replaced with a 'breather' filter doesnt allow blow by contaminants to be sucked back into the combustion chamber by intake vaccuum. they will sit in the bottom of your crank case and blow by will have to force its way out in the form of oil seepage out of the so called breather filter. on a boosted car the problem is only worse.
only way to solve this is with a PROPER catch can setup. look into it.
this is what im referring to. you should not have this. nor should anyone. they are a giant waste of money for people unwilling to do research.
here is another picture of a useless ricer part.
![]()