Just trying to understand here, you say the vacuum in the intake tube is greater than the pressure in the block? "the vacuum is greater than the pressure"? Maybe re-word that one, lost me for a bit.
Yeah, worded really bad. Sorry about that. I guess what I meant to get across was I believe that the vacuum in the intake tube will be enough to maintain the crankcase in a vacuum, even with a minimal amount of blowby.