intake gaskets are APITA sometimes to get it to seal on an intake R&R.

does any water trace show up in the oil,crankcase,dipstick or tube?

the intake bolts only torque to 144 inch pounds which = only 6 foot pounds on the wimpy bolts.

you just cant torque down on the bolts like an old LA intake when the gasket would weep.

I had to do it 3x when I fixed the plenum pan gasket. by the way,is your plenum gasket leaking? maybe time for a intake R&R with all new gaskets.