Only engine mods are billet crank gear and billet oil pump gears.
17.5 psi Procharger F1A
http://www.fordnxt.com/tech-stories/dyno-testing/procharged-shelby-gt350-cranks-out-1030-rwhp/
17.5 psi Procharger F1A
http://www.fordnxt.com/tech-stories/dyno-testing/procharged-shelby-gt350-cranks-out-1030-rwhp/