Exactly, you can have a p.o.s. and if it runs the number and you hit the tree the guys with 800ci motors and all the bells whistles will just spend more $$$ to try and beat you.
Low maintenance and consistency would probably be something to look for. Can't have fun or win any $$$ always working on the car. This type of racing is way different than heads up or class ( stock/superstock) racing.
Again just saying, I may wrong