I have a 2008 gt500 with lots of power, the trick in these supercharged cars is to run them as cool as possible. There is a 170 degree thermostats available. Performance products has them..
Good luck
Went thru exact same problem but with a rxt clutch, put in New shifter, bled the system lots, installed braided clutch line. I finally found s great mechanic who told me clutch was dragging. We opened it up and found the thin clutch plate was warped possibly during installation. Installed...