thorne, i know what you mean about the tuning thing. The first time i had my car tuned, it was by them. At the time i didnt know any better, but the motor had a nasty little tick to it, but didnt know what it was from. They put it on the dyno and put a 'decent' tune in it. The car made decent power but not what i thought. They said everything looked good to them, but not a week later i had the heads off the motor because the ticking sound ended up being valves bouncing around the head, so the car basically dynoed on 4 cylnders. But according to them there wasn't even any knock retard.