Hi group, let me see if I can articulate in this in a way that's understandable.
I have a stock 1965 Pontiac 326 engine. The engine has the PCV valve in the Valley Pan like all those Pontiacs do. That PCV valve vacuum hose goes directly to my manifold vacuum.
I just noticed that both valve covers have no vent or vent hose at all. Only the Passenger side has a provision hole, but it has a rubber plug.
My (stock) air cleaner assembly does have a hard mounted fitting for a hose attachment, but it is capped off.
It seems that there is no fresh air circulation.
What are the consequences of this setup?