Water through Intake Manifolds

Note how these dual quad tunnel rams have the water separate and away from the runners completely. Your dual plane has the draw back of being low and on top of the engine blocks hot oil from under it and the water flowing through the front.

Re route the water up front if you can cut and weld to a floating thermostat housing and out a oil shield under the intake.

That’s as good as it’s going to get with an OE intake.