SS Spring Rear Shock Combo, What to use???

ive got 02/03 springs on my duster and mp long drag shocks they work ok for what they are, but i think you can but a cheap old truck shock and work just as good...my car would 60' in the 1.67/70 range the best i could get out of it,but i think i needed better frontend travel and shocks aswell..but they did work...also your gonna need to check your pinion angle when you install the springs in order to get the best traction...i had 6deg. nose down with mine as well and saw a diff. from when it was off..my car would just clear the front tires and the track set up this way..mike