slicks on stock 17's
 

What brand/ size slicks can I run on the stock 17" nissan rims???? I would rather use the rims that have been lying in the garage than buy new ones.....

Drag or road racing slicks?

Drag.......The only thing that is offered to my understanding is 225-45-17 in a drag radial... would I be better off with a wider tire that is not as sticky???? I would like a 255 size for the stock wheel???? is this possible??? right now I have 275 kuhmo mx on my daily rims...

Usually I would say yes to a smaller tire if it has more grip, but a 225/45 is a small tire, especially for the rear on a Z. A 255/40 or even 255/45 would probably be a good bet if you could find one. Nitto also has a drag radial.

nitto has a 245/45 17 and a 275/40 17
http://www.nittotire.com/tires_555r.asp