Are these 273 commando valve covers on Ebay (not mine)?

C.A.P. package had a different breather cap placed on the left valve cover. That breather had a vapor hose routed back to the unsilenced air cleaner which also had a hose nipple.
PCV was on right cover and its hose routed to carb base on all. Does it matter which side the PCV valve is placed? I don't know. I know the heat riser in a right manifold makes all of that side hotter,,,, thus more vapor? Again I don't know. Their engineers fingered it all out so we don't need to know what the difference is.
Oh wait... Air in and vapor out must travel clockwise with the engine, LOL