Yes I would definately agree with 2tone04 on that point, go with the 6.0 swap that will give you more of a performance platform to go off of. You can't cram 2 pounds of s%#^ in a 1 pound bag, and expect it to beat a small block chevy off the line. It's your truck, but I just don't want to see you dump $20,000 into something that can't hack it down the road.