[Rev]

I think the 3.25 is a good compromise for a street driven car. Mine cruises 3000 rpm at 70 mph. You can put in the 3 rd member yourself, at least I did. Not really too tough a job. I think you would need a shop to build the 3 rd member though. I got mine from Currie in CA. I'm not sure whether you have an 8" or a 9" rear end. Either way, Currie can supply you with the 3 rd member. There are lots of options available, but be certain to get limited slip. Currie won't be cheap, but he has every ratio available and the quality is top notch.

Rev