[tonythetarga]

If you are hitting bumps and feel the car is bottoming out or your suspension is traveling more than normal, then you could have shocks that are not doing the job. The torsion bars are the springs and the shocks dampen the compression and rebound. If the shocks have no juice left, then the spring is going to move more freely as the car goes over the bump.
If you don't need the car for a few weeks, take the shocks out, send them to Bilstein and have them checked. If they need revalving have them redone to stock specs. Revalving is less expensive than buying new shocks. Put them back on and see how the car feels then. You may be able to get away with only doing the front a-arm bushings now as long as you don't go to bigger bars. If you go bigger at one end you need to go bigger on the other and then the shocks may need to be revalved to match the new spring rates. As I said earlier, it is all one system and needs to be managed together.