theres a wealth of info in the links and sub links
http://garage.grumpysperformance.com/index.php?threads/ls-intake-port-length.14716/#post-79730
http://garage.grumpysperformance.com/index.php?threads/chevy-ls1-related-info.3918/
http://www.superchevy.com/how-to/project-cars/sucp-0805-ls-engine-power-packages/
and purchasing a few reference books and carefully
READING THROUGH THEM SELDOM HURTS EITHER
http://garage.grumpysperformance.com/index.php?threads/ls-intake-port-length.14716/#post-79730
http://garage.grumpysperformance.com/index.php?threads/chevy-ls1-related-info.3918/
http://www.superchevy.com/how-to/project-cars/sucp-0805-ls-engine-power-packages/
and purchasing a few reference books and carefully
READING THROUGH THEM SELDOM HURTS EITHER