Overdrive or don't worry about it? !

With that torque monster motor you can use 3:23 or 2:94 and still have an asphalt ripper. Use a shur-grip. My Barracuda has 3:73 with 28" tires and GV. With stock converter and my 904 I'm at 2400 rpm at 70 mph. I'm building a car now that will have 400 foot pounds torque with a T-10 4speed and 3:23 track lock and 28" tires.