okay guys , was talking to the mechanic whom put the upgraded turbo and manifold etc on the other day and explaining the smoke I get from time to time . He suggested a catch tank . Yesterday my boss gave me one so will have a go maybe over the weekend. But reading a few threads on here a few members say no need the pcv should be doing its job . I replaced the pcv a couple of years ago . Fingers crossed it's nothing drastic hence I'm going the catch tank route first , any thoughts ?