Coolant in the oil - AGAIN!

Yeah, this old problem is back.

I just had the heads done, they were milled some more and BJR assured me they are flat. I changed the intake from an Edelbrock RPM to a Holley Strip Dominator. I changed the oil today, ran the car for a little while and the oil looks like a milkshake and there's white smoke coming out of the passenger side exhaust.

I pulled all the plugs, the only one that's wet is from cylinder #1 (front passenger side). The intake won't fit if I use the cork ends so I just used RTV on the front and back. I also changed the head gaskets from the Fel-Pro that I was using to the Mopar thin type.

The passenger side intake gasket is wet around the front two ports, more wet from the front of the 1st port to the front of the intake.

Is there a way to tell where the leak is coming from, if it's the intake or a head gasket? I don't want to pull the heads if I don't want to, I can pull the intake tomorrow and re-RTV the front and see if that helps.