Thanks for posting! Trust me, there is a significant power loss at high elevations. I live at 5,600 feet. When I lived at sea level, truck was awesome! At least fuel injectors compensate, people with carbs, well they are adjusting at various elevations. I physically run at various elevations and your lungs feel it. Especially in Santa Fe 7,500 feet or the Sandia Mountains 10,0000 feet. Your body develops a lot of red blood cells to adjust.