Dodgeman wrote:
I believe [but don't quote me] that it is capable of maintaining a balance of hot & cold air to maintain a constant air temperature into the carb. If this is true, then you couldn't ask for more. The carb can then be tuned for optimum efficiency & it will maintain that efficiency for as long as the engine is running once it has warmed up a little.

As that well known drag racer, Smokey Unick often said, ... "bring your variables under control" Wise words to remember.

ddgonzal wrote:
The idea is not to take "hot" air, but to take air at a constant temperature. Then you jet it lean within an inch of its life and be assured it won't vary as you are driving and drop even leaner and destroy the engine. In practical terms this means hotter than outside temperature so that you regulate the temp. Cooling the air is tricky.