Wow Jim, glad you've got your car rolling and smoking tires It sounds like you're looking for a harder launch off the line (less tire spinning)... I don't know how you're going to accomplish a real hard launch with those P255 tires. It sounds like some suspension mod's might help (I'll let an "expert" on that subject give you some advice), but you don't want to over do any suspension mod's if you really want to do a lot of street driving. Can you fit any larger width tire up under the car?

Dan J