[cobrashoch]

I just bought a innercooler from Vortec for my supercharged app. I too don't know exactly what you are trying to do. Are you are trying to cool the intake charge of a normal asperated car? If so I believe any performance gains you might get (small) using the stuff you mentioned would will be more than offset by the extra weight you will carry on the car. Bruce Edwards has it about right,
sealing off your carb. from the engine heat is about as good as it gets. You can throw in a fuel cool can for good measure for some goods results esp. on hot days. And make sure your car runs cool. Now if you are supercharging, a innercooler is a whole new ball game. Some clearification might be in order.
cobrashock