intake gasket is sweating coolant?

Phreakish said
That picture looks like the manifold is clamping on the valve cover? Could be an optical delusion, but it looks suspicious.

I'd pull the covers and retorque the manifold and see if you get any more movement from the bolts.

Then I'd grind the valve cover flange a tad just to be sure the covers don't leak after..

I agree with this assessment. The intake manifold is on top of the valve cover there and likely on all four corners. Also, #2 is really more suited to seal oil and not coolant. I prefer to use the RTV for coolant. But I don't think that's your real problem seeing the valve cover under the intake manifold.