Mine has a vent on the rocker cover, and uses the kidney box, these both go to a seperator ( bailey mirror image) And it has a drain back to the sump under the exhaust manifold, and the tank has a vent to atmosphere.

So the oil and air from the breathers go to the tank, which seperates the oil and air. air goes to atmoosphere, and oil reterns to the engine.

Doing it this way you can remove the breather to inlet manifold connection, and the red strainer valve goes in the bin too.