I am just perfectly happy with the factory setup. I live in a very wet area during the winter months, and I have a car that has a cold air intake, and it is not fond of the rainy season. The engine just runs a little different. And the factory setup pulls from the headlight bucket anyway, so its not gonna pull from the engine compartment.
But with the motor I plan on putting in, has been worked over, and may like the AFM moved over to the battery location. But that will be later down the road. The truck needs to be running first!!!