[Lew Ledyard]

To me, that is the best reason to run a dual quad set-up.

As far as air through the scoop goes, there might be more air coming out of the scoop than going in. Whenever I drive my car and there is some moisture out (wet roads, light ran, etc.), there is a water droplet pattern going out of the scoop. I guess that this indicates that air from the radiator inlet is escaping through the hood scoop.