Not Ranked
Me personally I would go with 3.73, I had that in my cobra. It was extremely quick and was plent fast for me. On the chassis dyno it would do 165 mph at 6000 in fifth gear with a TKO with .68 overdrive. Now this motor would turn over 7500 rpm but I used a 7500 chip in the rev-limiter. I fairly sure it would pull that in high gear just didn't need it don't like high speeds. I then put in a TKO 600 with the .82 over and loved it. Would definately reccomend that set-up. I had Bimmerworld do my diff, it was $1600 with a 50% lockup worked real nice on the street. By the way my motor made 612 horse 615 torque on engine dyno, made 460 horse 470 torque to the rear wheels. I also ran race fuel 110 octane in her all the time, but didn't need it it was really a pump gas motor. With the aluminum block my BDR tipped the scales at 2200 pounds. Go with the 3.73, I prmise you will love it.
DON
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