On the stock motor, there was no reason to take the motor past 6000. It just didn't make power in that range. However with my Crower Stage 2's, the car felt like it would pull right through the stock 6750 rev limiter (or at least thats where I think it was...memory is fuzzy as that was over a year ago when I had the car). Those cams combined with a lightweight flywheel were by far the best money spent on that motor.