Surging but not surging?

[Lonestar10]

Could be idk just seemed out of place. Next target I'm going after is why I get a noseful of crank case fumes every time I use engine brake to slow down. Used to think it was valve stem seals but now with new head still does it. Maybe a turbo seal but I would think over a year of it I would think the bearings would have dynamited. As it barely has anything coming out of crank vent at idle but idk under load. Can't catch that perverbial tail I'm chasing.