hey yall im new here on df and have a few questions. ive got all the upgrades in my signiture but am not happy. i talked to a guy in a near by town and he said that i wasnt making the horsepower i should be. he suggested a lift pump at bare minimum. i was looking at the air dog 2's but i dont understand how they work. and i dont like putting things on my truck unless i know how they work. what makes them so good and what is it going to do to mpg?