Hi, I have a class 3 motor home. It is a 1 ton chevy van with a 23 ft. Shasta camper on it. 5.7 motor and a turbo 400 trans. I get 11 mpg. with this set up. Would I gain much if I put a 700 in it? Would this take the load O.K.? Just wanted to run it by you tra... Login to read more.