Solo 2 question

trying to help my friend Brock with classing his ride.

based on the information on the site below.....

http://moutons.org/sccasolo/

....the SVX is in G Stock. But it seems to me, he can only to into Street Mod (Street Prepared?!), and can not get into Street Touring. Does this make sense? Is the fact that the stock engine is a 3.3L?