What do you expect from uprated parts? You tend to loose compfort when uprating to performance parts...you have pretty much changed all of the soft bushed and replaced with hard polly, you have removed soft wallowy dampers and put uprated stiffer items on, and also with the springs...soft items off and (I bet) hard items with different rates on in their place.

If you want to release some compfort back into the ride I'd start by looking at your springrate....you say you have a kit from H&R so look into what you actually bought and how it compares to std springs.....in terms or poundage and spring rate. If possible put your old springs back on for a test...if it rides a bit nicer then look at other springs.

Dan