Coil overs with Torsion bar?

I have a 73 B body front stub. it already has tube uppers and racing shocks in it. I would like to get more adjustability so I am thinking about going to a set of Coil overs with stock Torsion bars..removing the bars allows the lower bushing to come apart so I dont think i want to do that. I am wondering what rate you guys would run for coil? the car is about 3000 lbs 53% nose.
Author: chrisII