Go for the higher 120lb/f fixed bump option that they have (up from 80) if the car is to be used on the track .

They normally come with 350/250. The front will probably be okay (once the dampers have been sorted), but the rears are way too hard and you want something like 175 or 150 (if stripped out). You may want to go to 375s on the front to compensate for the lack of bump / rebound range on the AVOs...