I have an 06, 6.0 powerstroke and I put an Banks 6 gun on it yesterday. Now I dont know for sure, but I think something is wrong. There is not an extreme differance in power. It just a little different between each setting. And there is no black smoke either. I know Banks is the "safest" but shouldnt I notice a pretty big change. And do the 6.0 not smoke or should they. What do I need to check. Id say im only getting 30-50 hp on level 6. And that not right i dont think.