Like the others have said, you need ONLY ONE PCV valve. If you run two, it will eventually suck a gasket into the innards of the engine somewhere.
There may be more than one filtered fitting on the aircleaner IF the engine originally came with an A.I.R. pump. They drew air from inside the air cleaner housing before going into the pump.
sounds like you are getting there, just please delete one PCV before you do some damage.