What rear suspension for bracket racing.

I still say clamp the springs that are on the car now if they are not sagging [no $ involved], buy some good shocks and sticky tires[slicks/radials] whatever. Then go to the track to see what you have. Then proceed accordingly. I would put frame connectors in b/4 I did any other suspension work. Then a QUALITY d s and yokes. If it starts hooking hard it's going to break stuff. A 12-14 second car doesn't need anything but slicks and shocks and tuning.