Leaf help early A body

If you are running a rear sway bar dont go too nuts on the stiffness. Also, raising the rear is exactly what you dont want to do for handling. If it was me (and this is what I plan on putting under my 65) I'd run replacement 6-leafs, .890 T-bars, Addco sway bars front and rear, KYB shocks and 16:1 manual steering. Should be quite a bit firmer than stock without beating you to death.