Venturi vacuum pump

[FattyBoomBatty]

Pretty sure you need to take a step back, cause you're standing on my dick.

I know what he meant, why the hell would you have both the pcv AND breather/vent going to the intake, catch can or not? The idea is to have alternate sources of vacuum so the crank case is under vacuum as much of the time as possible.

I already suggested above my picture I drew that a second catch can between the vent and check valve going to the exhaust nipple wouldn't be a bad idea.