Icing The Intake Manifold: I'm sure you've heard of the old trick of placing ice on the intake manifold to cool down and help condense the intake air, cool. The problem is that the ice will melt and get things wet, OK, here's the answer, go down to your favorite camping store and buy some of those self contained ice packs. Put them in the freezer a few days before you go racing and there you have it, no mess intake manifold cooling. Dry ice will work too, but use caution when handling dry ice. You will be the coolest person at the strip with this trick tip.