well they are on a stock setting now.. but when the engine was built we set the rev limiter at 5700rpms (for safety) and since the car hasn't been tuned yet .. the shift points are at 6000rpms and the limiter is at 5700.. And we use a program called "LS1EDIT" or "HPTuners" to tune our car.. The factory computer have unlimited varables so we don't have to buy aftermarket computers..
