I have a 68 Camaro that I have replaced the front suspension with QA1 control arms, roll bar and single adjustable coil overs (both compression and rebound are affected). I went with 500lb springs. I have a 400hp sbc and Muncie. The rear is stock-like but not original with worn out multi-leafs and shocks. On the street it feels firm and responsive. I took it to the Goodguy AutoX in Raleigh this year for some fun runs and it pushes like crazy. Not surprising given the imbalance. I had always planned to update the rear suspension and would like some advice. I don't plan to ever be a "serious" racer but I do like my stuff to work well. I'll do the occasional AutoX and would like to run the track at Camaro Fest next year. So, I am thinking about going for the Ridetech 4-link system for both performance and improved ride quality (so my wife will ride in it). Here are some of the questions I am trying to sort out. 1. Rear coil over spring rate? I am thinking 200lbs to balance with the front. 2. I want to go to a double adjustable coil over to maybe improve the ride on the street with the ability to tune for track or AutoX when desired. I am considering Viking double adjustable front and rear. Good choice? I'd like to keep the budget under control but I do want quality parts. FWIW, Ridetech says their shock will give a better ride as they are mono tube but they are only rebound adjustable. 3. Should I use a rear swaybar with this setup. 4. Or is that all a bad idea and should I go with something like the Hotchkis rear leaf setup with a 1.5" drop? Swaybar? Thanks for any input you guys may have.