Suspension Question

Hi! I have a 1987 CRX SCCA ITA car. I was wondering what you guys suggested in terms of torsion bars and rear springs? I know these cars have excellent roll centers so there is a wide range of rates that will produce very neutral handling characteristics. Which do you feel will allow for some slight throttle-off oversteer. Also, I want to decrease camber changes as much as possible in the front end on corners of 50MPH and greater. How much negative should I have dialed in?

Thanks in advance for your help!