Want it to handle like a new car!!!

Maybe autoxcuda will pop in, he did his car in stages, but the outcome is definately A+. Also, wracks has a very simple and effective setup going that handled insanely well.
Here's a vid of wracks71 duster in action.8)
[ame="http://www.youtube.com/watch?v=E4sTibFkxTY"]YouTube - Peach State Musclecar Challenge Autocross - Wracker's 71 Duster - ProTouring[/ame]

I just forwarded his suspension mods to you:-D