Is this a manual or auto trans car Paul?
Auto...2004R with a Yank converter.
Well you kind of answered one of your own questions. Your car hooks fine if the track is prep'd (meaning perfect), this is where a traction device comes in, it will allow you to hook more consistantly even on not so perfect tracks. Personally I would go for a set of Caltracs.
Nah, don't need them. If I used the car more on the strip than the street maybe I would but I don't really want the extra hardware.
With that said, have you played with your timing or jetting at all?
EFI so sure I messed with AFR and timing, it's pretty much all dialed in now.
at this point you need to look for a little more power to get to the 11.50's
Nah, all I need is for the track to be prepped in one of the next two outings and I'll have my 11.50's. Last time out NOBODY was getting traction, not even the guys with the fancy traction devices/suspensions...so it's not like there's something wrong with my setup, I just run less stuff than most.