Originally Posted by synolimit

Yeah it's not an issue. My subi ran the valve covers and crank vent to a AOS that vented to atmos. No PCV and manifold blocked off where it was running. Car ran 23psi without issue. Also what I loved was the valves and crank ran into the AOS, but the bottom of the AOS Tee'd back into the crank vent line so under boost whatever came out of the valves or crank, under vacuum it would all get drained right back into the block. This is how Crawford runs their AOS too on ken blocks car. This way its 100% maintance free and during a long race you lose no oil as a OCC will fill up leaving the motor with less in it.