By maximum power I assume you mean HP at the front wheels?
That's a pretty high number on the HP for this altitude. Last summer at the National meet 4 of us dynoed our cars, and we were all in the mid 130's for HP. One guy was around 145, but he had Shawn Highland headers and some other mods. You can figure around a 30HP loss at 5000ft, plus the loss from the transaxle, etc
Could be a difference in the dyno calibrations, I suppose...
