A true story,
My friend has a Camero that will run 6.60's , but there is a new class of racers. One is the 6.o index and the other is the 7.0 racers. No electronics allowed. So we devised a new system of carb restrictor plate much like Nascar. I made about 20 different dia. plate restrictors for him. we look at the weather and make a trial pass and decide what plate to run keeping records. He has now won 2 of 4 events and can run within .002 of his dial in every pass, the only way he loses is if he screws up on the tree. The last time out his worse run was 7.02 and he lost with a 7.012 but with a .509 light, with the competors .507 light and a .701 =.ooo4 loss.
Zip.