Race Car Rear Suspension

I have a '77 Aspen that I am converting to a Stock Eliminator racer, Super 6. I just picked up a B body rear from a pre 70 car. What can I do to eliminate the iso- front hanger bushings and what springs will work with the new 8 3/4? I know that Cal Tracs makes the springs but I don't need to spend the $ on a /6 power.
Author: CM360