I looked at the Powerstroke vs Cummins vs duramax test a year ago. the powerstroke computer causes the engine to have so much torque under load that the truck had greater acceleration loaded than unloaded!!!!!!!!!!! My 95 F350 crewcab with the 3.73 rear end is this way. Don't know about the 4.10, it has never seemed to be loaded..... C ecil in OKla