I know that cold, dense air is better for engine performance compared to hot air. (the reason why we all put cold-air intakes on our cars) I was thinking of another way to feed cold air into the intake manifold and i came up with an idea that involves the air conditioner. If you fed the air conditioner tubing directly to the intake (after the compressor and condensor of course) and turned it on full blast, like you would in the car, would this be creating the cold air that the engine needed? I think that the a/c in the car works by dehumidifying the air. How much of a factor does air humidity play on engine performance.