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As with the horsepower curves, the experimental test vehicle exceeded the norm above 2,500 rpm but gave up valuable pulling power at lower engine speeds. Of course, if you have just some 400 lb-ft to start with, either 650 or 700 pounds of torque are a vast improvement. Since Banks favors usable torque over high-rpm numbers, the constantly upgraded engine management modules will be closer to, and made to improve on, the PowerPack's curve.