Suspension and handling upgrades for my Dart

Hello, I'am currently restoring my 72 Dart. The body work is almost done and I've been trying to figure out what I'm going to do suspension wise for my car. I now these cars do not perform too well in the handling department so I would like you guy's input on what I should do. I know I want it so that it can handle daily highway speeds as well as take it to the track on the weekends. I need to know what brand suspension parts I can trust. (Keep in mind I have a little money saved up to play with8))