Dump the Traction bars and the stock springs, replace with a good set of upper and lower control arms, trash the quad shocks, replace the springs with some H&R sport springs, and possibly look into an airbag on the passenger side rear spring. And adjustable shocks and struts or a good set of 90/10 and 50/50 lakewoods.

And also that fact that you run that heavy ass C6, could be a good blend of issues as well. What boost level are you running on the dryer? And do you have a boost controller or runing off a gate?