maybe this has been asked...... To the topic of venting, not power...
wouldn't an aftermarket air/oil separator do the exact same thing?
Moroso : Category Display
I found this thread cause I've got a built motor now making high boost, and my catch can is filling like crazy now.
I was considering welding a bung, or doing a conversion valvecover, but I just shaved and polished my s13 valve cover, and i don't want to do it again....
anyone?