I dont know the details on that cuda. Dont think the owner was ever on this site. I think I found the picture on a local car show site. The stance and general look inspired me though.
If I had to guess I would say those are probably 17inch, and definitely AR TT2's. My car is not lowered quite that far, but close.
Personally, my opinion, the largest rims you can go with on a cuda, and still look good, are 17 up front, and maybe 18 MAX in the rear.