A decently cammed Gen III will sound pretty good. My Power Wagon is fairly mildly cammed, but it sounds pretty darn good with the right exhaust, and has just as much power and torque as a BB, with decent fuel mileage to boot. This truck sounds almost as good (and more lopey) as my BB Dakota. I do love a BB and is always my choice for a build, but I'm starting to come around to the modern engines giving them the respect they deserve (now have 2 hemi swapped W100's).