i was a customer of gary for over 5 years so i definitely trust him that it will be safe, but seems a bit out there for me any way
i wouldn\'t imagine any gains before 5000rpm but it depends on how it\'s tuned and whether or not timing has been pulled to reduce det and if it was hitting high IDC early on, but i doubt it. look at 5200rpm and above, the rate of incline changes slightly around then, so that\'s my theory of where timing pull has occured, but could easly be something else (cams, boost control, etc).