got stuck into it today and the oil was actuly just the rocker cover gasket, so fixed that and no oil leaking. then the only thing id changed before it all went abit tits up was id run a pipe from the pvc valve direct to my catch can and put a bolt in the inlet pipe, so i just put the vac pipe back to standard(from pvc to inlet) the revs dropped back to normal and it just sounded better. the smoke from the exhaust is abit wierd, on idle thers no smoke at all, give it a rev and a little bit come out, give it a good rev so bov sounds and it smokes for a few minutes and stops. took it for a gentle drive and theres no smoke till you go up a hill!?!?! then it smokes alot. took my turbo intake off and theres no play in the turbo. so im abit stuck again now!!