If you decide to go the 1000cc route do yourself a favor and spend some time in the pits at the track you plan to run most often. Talk to people......see what types off chassis, shocks, engines, etc they are running. A little bit of pre work will save you time, money and heartache down the road. You might run into someone who has a good program that is looking to sell their car to buy a new one. If you can get something like that you will have loads of info and a resource at the track if you have questions. Good luck.