[sycraft]

Line from intake to ipf can, one cap is plugged on 3 port can and the other line to the rt valve cover as an air inlet. no check valve here. The only reason a can is used here is 1. it was already mounted and there, 2. it will offer some protection from any unwanted moisture entering the system from the intake in the rain and any venting oil oil vapors entering the sc inlet. This is your fresh air inlet.

line from left valve cover to inlet on second can,
line from 2nd can on a one way boost proof valve to the intake manifold for suction to draw air through the crankcase. when in boost this closes off.

This second catch can has a one way vent on top to relieve pressure in case there is positive pressure present.

I added a oil breather cap that will also only allow venting of pressure to be sure there is no way to pressurize the system.