Lower Gears vs More Power

Question and backgrounder Our 2001 Ford 7.3L Power Stroke Diesel engine has been modified, mostly for better efficiency, with new injectors, fuel and oil pump upgrades, intake and exhaust mods, and a tuner. Exhaust gas temperature (EGT) is not currently a problem. The truck has a 6-speed manual transmission, with an aftermarket South Bend Clutch. We have a Four Wheel … Read More