As mentioned before, indexes are basically a minimum e.t. for a particular class in order to be competitive. These are used to establish qualifying positions based on how far below the index a vehicle runs. One cannot dial slower than their index during eliminations. If you don't have the combination to run fast enough or have a mechanical problem, you will obviously be at a distinct disadvantage. When cars of the same class meet (K/CM vs K/CM, G/CM vs G/CM, etc.) "dialing-in" is irrelevant. It's heads-up, first one to the finish line without causing an infraction, wins. Run whatcha brung, and hope ya brung enough! Indexes are subject to change by the sanctioning body. Take your pick.
Look It Up
Useful Web sites to learn about and keep up with class racing happenings, rules, rumors, tips, classifieds, and so on.