Smoke coming from dipstick after driving

I have smoke coming from the dipstick and if I pop the little tube that runs from the filler neck to the throttle body, whitish smoke will come from that too? What does this mean. I'm thinking the pcv isn't functioning properly or something. It's also sucking oil into the upper intake. I assume that it's due to the removal of the baffle in the valve covers. Am I going to have to switch to a breather to allow the system or breathe, or do I have one hell of a problem? The car runs great, does not smoke, just the rear main seal leak has gotten a touch worse since the install. Oil pressure drops to 25psi or so at hot idle, but shoots way up as soon as a bit of gas is applied. Car runs great, and has been running great like that for a while. I'm hoping it's just something not functioning properly. Thanks a ton.

Hmm, I wouldn't think it would be a piston problem because less than 2 months ago I had the top half of the motor apart and everything looked great. Who knows though. I'll look into the pcv valve and screen though. The intake sat for quite a while and could have picked up some trash.