i'm gonna do a leak down test , maybe that bwill give me some insight . I deleted my pcv's long ago and never had any issues. but now that I've beat on this motor for 33,000 miles and I mean every day is race day, could've worn my rings. oh and lets not forget the 2 nitrous backfires and melted exhaust valves. had I known what I know now I would've had the rear seal area lathed when I had my crank turned