You need to have your PCV connected and working. It's a $2.00 part, get a new one, or wash out your old one with brake cleaner. You should hear the little ball inside rattle if you shake it. If not, it's stuck and should be cleaned. If you do, then hook it back up as it should be. You need to have this working, it's very essential.

Here is what it does- while your engine operates, the oil in there gets hot and gives off vapors, vapors that form pressure. By bleeding that vapor pressure out of the engine internals, your engine will run as it was engineered to do. If that pressure builds up, it strains everything and you can blow seals and gaskets, and sometimes, much worse.

The PCV system was engineered to burn these vapors and pressures, as opposed to letting them vent into the atmosphere (as was normal from about 1964 and earlier).

OK, back to your issues now!