i agree with the sentiments on gearing. if you're in town mostly the 3.73's are gonna be nice but if you're planning on hitting the super slab be ready to hang that bish at 3500 because otherwise you're gonna be slow poking it in the RH lane.
3.55's is what i would consider the upper limit for a touring car and even then with special consideration on tire height and the carb selection so i don't go broke feeding it.