Here is a friend of mines Camaro build journal. Its a long journal. No doubt. Short story is 427LSX supercharged wasnt enough so he is having it twin turbo'd. Some good readin in this thread.
[COTW 4/16/12]: GILMOUR's 427 LSX Detroit-Muscle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
[COTW 4/16/12]: GILMOUR's 427 LSX Detroit-Muscle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com