It rolls all right, the egt guage has a bad connection so it was reading colder then it actually was, I made 1200 yesterday full throtle up a hill in 3rd so its still got good numbers. It roll pretty good off the bottom end but onece the boost comes in she cleares up, Im going to do my own setup on the pump after thanksgiving and go from there. I can make 35psi right now in 3rd.