engine issues, help please!

Head gaskets can fail and allow oil /water mix without effecting compression. That wouldn't cause your running problem though.
There has been a lot of posts around lately concerning intake gaskets. Too thin? Aftermarket intakes being undersized ? Head and or block milling increasing gaps ? Various causes or speculations anyway.
Stacked gaskets can solve it.
I'd pull the intake and clean up the mess then center the intake and check gasket space.