Yes for strength & Ring & Pinion Selection, there is a ton of ratio's available. When I started this build it originally was going to have the 402 Stroker in it with a Small hit of NOS then the Turbo Bug hit me. The 8 3/4 set up the way it is now is good to 600HP and should last a long time at that power level. I am anticipating a minimum of 800HP to the tires with the Twin Turbo set up.
Yes someone is going to get a great deal on a Rear End Set Up.
