I think that the BBC series of engines can be great producers of torque/hp and can stand really big boosts of power adders, however, when someone uses the work TOW, it disqualifies any reason for that engine as a choice supported by me----go buy a Ford F350 with 7.3 and get 19 around town and 17 on road at 70-75 mph towing 45 tripple axle---------biggest decisions to make is what kind of GPS and sat radio to get then what station to listen to---------