It wasn't a coolant problem. I used the Fel-Pro gaskets with the small bead of silicone around each port. It looked like when I torqued the intake the gasket split at the base of the port around the silicone. The small crack was allowing
oil into the intake port. Don't know why, the 2nd gasket was the same and it's been just fine. I suppose it could have been an old gasket or maybe just bad.
Don
PS. Mr. Fixit makes a good point. I never use the end gaskets, always just a good bead of silicone.