The most recent set of specs for the F1 class that we're going to use are on the website. There's a link under the 'Info' section.
Touring Stock (both Stock and Pro-Stock) has been the most popular class during the indoor season. I wouldn't want much changed about that format. At one point, we did merge the two classes... it provided a smoother transition point for racers who were getting better, but some people didn't like it.
Pro's were too busy dodging rookies instead of racing, and the rookies were too busy looking in their mirrors instead of concentrating on driving a clean line.