Clearly, you are not hauling around enough attractive femalesrianbechtold said:
Front:
Poly bushings are good, use them
A stock rebuild with a 2" lowering spring and a 1-1/8" 2nd gen F-body sway-bar will make it feel pretty good. Buy the best shocks you can afford.
Rear:
Poly bushings are bad - DON'T use them, especially in the upper arms.
Which edelbrock arms are you looking at? They make a really good adjustable upper with a spherical bearing. The rest are bad, and increase bind. Unless they are the adjustables with spherical, use your STOCK upper arms with RUBBER bushings at both ends.
Stock boxed lowers with an F-41 bar and stock type springs will work fine. Poly bushings here will also increase bind, but not as bad as the uppers.