IJ. said:The valley could be full to the top of the cam boxes and it wouldn't get into the cylinders......
If the plugs were loose enough to allow this you'd hear it while it was running as it would "whistle".
Have you changed anything in your setup recently?
If not it might just be a bit of wear and increased blowby.
(Have you drained the Catch Can?)
i just drained the catch can this morning, hardly anything in there. my setup has not changed at all. if the turbo seals are bad, does it smoke all the time??