I have an ati supercharger right now and i want to sell it and go naturally aspirated. if i got my heads ported and polished put oversize valves, new cams and a more aggressive timing on my rocker arms what type of gains should i expect. I have a 2002 mustang gt. I basically have all exhaust done including headers, pullys blah blah blah. also if anyones interested i want to get rid of a procharger w/ 3 core intercooler. e-mail me if interested Dwcharger34@yahoo.com