I am going to have to agree with pilotfighter on this one
pilotfighter
You generally get better power from cool AIR.
As a performance car nut I have found that cooling the air makes the difference. Now I would not sujest ice packs for your 2 stroke but a velocity stack that increases your intake air speed will cool your air. Just yesturday I was running in my Saito 4 Stroke and was thinking about this very topic. If your not familiar with the Saito its carb is located in the back of the engine and has a 1 1/2 inch or so long chrome intake runner. After a short while of running I noticed condensation on the intake runner. It was about 95 Deg and very humid. Well couriosity won the day so I touched it. I know some one is saying don't touch a running engine but hey I set my beer down first. Anyway that intake runner was COLD. Looks like a good thing to me.