I have purchased two new thermostat housing gaskets from NAPA. These are the kind that have the adhesive backing on one side. My question, Which side should you stick the adhesive side to? Bottom, Intake Manifold or thermostat housing Top, Thermostat Housing or Water neck. Does it really matter? I'm assuming the adhesive is just there to help hold the gasket in place while you tighten everything up. Any opinions?