What exactly are you looking to do with the car? Jamie's advice earier is in the ball park for a nice streetable 20 series club car. I ran my 25 for years with 170lb springs, then 200's, then I ended up with 225's on my adjustable sruts. All three were different set up's for differing purposes as the car developed. Rear springs used to be standard leaf pack reset, and ended up as a standard pack plus an 8mm leaf. No change in swaybars.
This set up works for me, but it was the way I liked the car. Set up is very personal, and even with the same set up on paper, cars will still handle differently.
Geometry is also very important as well. Get into Puhn if you want to get serious with that.