In a previous post, charliemccraney installed billet breathers in valve covers. Has anyone ever tried putting one on the block hole? If they come with a baffled grommet, would high rpm crankcase pressure likely still force oil out if pcv AND vented oil cap were also utilized?

I used to run a more effective oil cap filter (and restricted pcv valve vacuum tube.... ran too lean otherwise) on my T-bird with stock block-off plate, but hard driving would force the dipstick out, and the oiled cotton breather cap filter would drip oil. Wouldn't the additional block breather be advantageous by bringing in air from lower down for move complete evacuation, AND eliminate the bottleneck that allows crankcase pressure to build?

6 VOLTS/POS. GRD. NW INDIANA