Mr Grandpa's '01 F-350 extd.cab long box dually 7.3L ZF6-speed dynoed about 293 hp, and 697 ft/lbs torque at the rear. Garret BB turbo, 4" exhaust all the way through, and BD's power programmer. He hit's max torque at about 2000 RPM, and it's table top flat until about 3000 RPM when it starts to taper. My '96 7.3L ZF 5-speed is about 225 hp and 425 ft/lbs at the rear. 50 hp chip, 3.5" DP, 4" exhaust, 5" tip, modified stock air box with K&N air filter.
Sorry...don't have any 6.0L numbers.