we have all seen some of the recent vid's circulating that show the Z06 running neck and neck with the GT. I am starting to think that ford put something in the tune of the GT that limits output during hot temps (afterall it is the hottest part of the summer). I guess I just don't see how a 3150lbs. car with ~440 rwhp can run with a 3450lbs. car with ~525rwhp from a roll. My suspision is that as a precaution, the stock tune pulls timing at a certain temp and that it is set up too conservatively. I have also noticed the unusual dyno results for the new GT500. One car dyno'd ~375 rwhp then same car dyno'd 440 rwhp a little later with NO changes. Some have dyno'd ~450 rwhp and others ~410 rwhp. I assume the GT500 shares the same basic tuning software with the GT. Does anyone have any inside info on this? Will the outcomes of these races be drasitcally different this winter? Thoughts?