I have a 99' Cobra... I have the stock gears in it and I want to put some lower gears in. I have a set of 3.73 and a set of 4.10. I hear 4.10's work really well in the Cobra's since they make power at 4 grand but I don't want too lose too much fuel efficiency. I want my car to launch like a bat out of hell.... would 3.73 do much or should i just go with the 4.10's?