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Old 09-28-2021, 10:43 PM
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Elarson Elarson is offline
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Join Date: Aug 2006
Location: Dayton, OH
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We used to have a 2007 duallie with that power train. Used it to pull a heavy gooseneck horse trailer with living quarters. Much better torque than a 454. Not as much as a Duramax but we were happy with it. It actually got a little better mileage than the 454's because you need less throttle and would stay in closed loop most of the time. High % throttle position throws the computer into open loop and the fuel injection richens significantly.

FWIW,
Eric

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