Hey Guys,
I'm an airplane guy (16 years) who just bought a Tmax truck to get my kids hooked onto RC (or, at least that's what I told my wife..)

Anyway, I got the engine running tonight, ran a lap or two around the yard...

Here's my question: The manual shows a cooling hole should be cut in the windshield to allow air to pass thru the body and over the engine for better cooling. In the airplane world this is a MUST...you gotta have cooling air going thru the cowling. How important is this to the Tmax? Is this one of those things that MUST be done...or is it really necessary?

I'm running the engine pretty rich for the first gallon, lots of smoke coming outta the muffler.
-Doug