intake gasket is sweating coolant?

Every time I've tried using sealer (other than the gasket itself) on an intake gasket set besides at the corners where the seperate pieces of gasket lay, I've had to redo the job. I also have never had success using RTV only as the intake to China wall sealant.
The only exception is using something like Hi Tack or indian head type sealer on the head surface only.
Otherwise I always use the included China wall gaskets and ONLY use RTV in the corners.

The last time I ran into this (and why I always do my own assembly) was on the 408 my son had built for his ramcharger. It ran like ****, couldn't get any vacuum nor could have get the carb to respond to any adjustments, we sprayed around the intake and the motor ran worse, wanted to die when we sprayed around the head to intake seam. Once I pulled the intake and resealed it the right way then everything was good. There are many things that the Chevy boys do that don't work on our engines sorry.