Straight from Lupe's website:
Automotive Engine Specialties and Speed Inc. hooked up Lupe's twin-turbo widebody SS Camaro with a brand new turbo prepped LS3 with forged rods and pistons, fully ported and polished heads with stainless valves, and a custom AES ground turbo cam. To handle the added horsepower, they also did a 4L80E transmission conversion, and added a Squash Performance 1200 hp fuel system for E85. Finally, they upgraded the Stealth twin turbo kit with ball bearing turbos. Check out a video here.