I sent a data log file to Rich and he noticed that the engine gets a little unhappy past 6500 rpm. I couldn't hear it or feel it on the dyno but the RPM and MAP traces both get a little jiggy up there. Could be a slight misfire or perhaps the hyd roller lifters are bleeding down a little bit. The power doesn't fall off very quickly but the RPM trace is skipping around enough that it sure looks like something is up. I'll have to keep an eye on it. I don't really need to wind it out that hard. 6000 rpm is 125 mph in forth gear and the car won't run 125 in the quarter.