What do you think a 2004 mustang gets gas mileage wise with 4.10's vs. 3.73's. Not to do a complete repost, usually its "which one is better" Im asking because i dont often go over 65mph with the car but i want good gas mileage (at least 22mpg) and if im not going to get it with 4;10's ill have to settle with something else.