PCV and Valve Breather Question

So assuming that the yellow hose is connected to a PCV valve, will that not work on the side that it is connected? Could I simply swap the PCV valve to the side where the oil filler cap is now, and then put a simple valve breather on the other side? As I mentioned in my original post, the hose feeds back into an inlet at the base of the carburetor. The engine seems to run fine and I have not noticed any oil blow-by type issues or oil in the air cleaner.