So i'm looking at buying my first personal chip truck for doing my side work around town apart from my my full time job. It will be used lightly just for the occasional chipping and hauling logs so it doesn't need to be anything crazy. I found a pretty decent 1981 F350 dually obviousley with a 351 and a 4 speed. I'm not concerned with the tranny or rear end but more so the pulling power of the 351. I'm very familiar with Chevys and know what a 350 can do but have no experience with the 351 motor. Will I working this motor too hard with a load of chips and a small 6" chipper? I think it'd be slow but pull it ok. Any Ford guys?