well my rex is lowered and i wanted to know what is an ideal set up?

its mostly for going straight... more dd/drag then twisties, but you know they are always fun. i would say a ratio of 80-85% dd/drag 20-15% turns

 

Zero toe front and rear.

-1.5 camber up front and -2.0 in the rear is where I'd start with your requirements. The -1.5 in the front should be a good compromise between launch grip and cornering grip....

That's where I'd start anyway...