Duster with b body 8 3/4 wheel set up

It is a 68 B body axle I got for free haha! It has spring re location kit. They are American racing wheels, I forget to part number off the top of my head but can get them. I thought about 18’s but wanted to stick with 17’s and am overall happy with the results.

What springs?

You're going to be really close to rubbing the inside of the quarter or the bump in the stock wheelhouse with any kind of suspension travel