swap turbos a 62 w/ a quick spool manifold will spool well and provide a much better volume of cooler air at the same amount of boost which means more hp w/o the cost of high egts, actually they shoudl drop which is definetly on the good side of things for towing... u dont really need dvs to make power but a 3gsk and a timing bump would help you with a larger powerband without risking valve float or needing the edition of valve springs to keep it from happening... I suggest maybe also running a more aggressive fuel plate to match the 62... yes u could run a 0 plate, or take the plate out, and gut the afc completely but i think its better to use the plate as tuning tool as whell as the afc which will help control those egts during towing.