Well at least you're getting some feedback. That's great. The more people talk the more they'll come out.
Have you guys thought about condensing some of the classes into one to save a little time? Like 2 wheel mod and 4 wheel mod, or 2 wheel stock and 4 wheel stock? I'm not sure on that tight, high traction track if there is really a difference between 2 and 4 wheel. Alot of tracks will have a novice class as well, that is for just for beginners and allows any car. That may eliminate some of the 2 or 3 car heats. Just a suggestion to help move the program along and keep people from getting bored and loosing interest.
Here's a layout I put together today. Don't know if there's enough track to make it or not. It would be run counter-clockwise, that way you have the whole straight for staging the cars.