Rear End Gears

I'd run a 3.91 so quick it's make your head spin. Your final drive ratio will still be 3.08.
That's how all the new cars run like a scalded dog but get good highway mileage. He could always start with the 3:23's and trade the 3:55's for a set of 3:91's. Both mine have 3:23's and then I added tall 15" tires.
:wtf:did I do that for? The looks. Killed my performance. Both get close to 20mpg/hwy. though.