Here are some pic's of our track. We change it often when we race onroad, but we are mostly oval only for the last few years.
We only use the current site, but the other one has a good night time photo from a few years ago.
http://www.hobbyworldraceway.webs.com/
http://www.freewebs.com/irvan36mm/
The oval run line is 320 ft. Road course is (?) ft. lol never measured it.