Stock 440-6 barrel restoration engine, the PCV Valve is pulling in oil after rebuild wetting inside intake and fouling plugs. Engine holding 18 steady vacuum and I have done a compression check and find all cylinders at 165 psi. There is stock valve covers on the engine with baffle so there is no direct oil being splashed on the valve. I'm at a loss any ideas ?
Engine ran on dyno with no pcv and of course ran awesome, rings sealed right up and made 410hp 470 torque.

Thanks MLR426