I am re-posting my answers because I believe they were lost in the scuttle
big bar/soft spring?
that choice is mostly decided from training and driving style..
for me...I run my 68 Camaro with 800 lb front springs and the DSE sway bar...my upper control arms pivot point has been moved from stock (modified Guldstrand) and that creates a jacking effect so essentially my car is in camber moment at all times...the lower control arm has the shock mount moved closer to the ball joint than standard arms....and the triple adjust front shocks i have run a digressive piston....on the rear I run a 325 spring on a triangulated 4 link and the triple adjust rear shocks i have run a digressive piston, I use the Helwig Protour rear bar....the weight of my car is 3150 with full interior, radio, heater, full tank and Cage the engine is a 6.0 LS.....
my set up is
big bar/medium spring
and even with the poundage of springs I run you can see how my car fully compresses coming off the rumble strips at 90mph at the Vegas Track
hope that helps