maybe you guys have or are still modding your ls1's, i highly recommend that yall pick up the latest high performance pontiac magazine as they are running an ls1 do and donts article that should be helpful.

just thought you guys should check it out, its very helpful.
i also recommend that you guys check out the gm high tech mag. they run alot of f-y-and g body articles also.
http://www.highperformancepontiac.com/toc/
http://www.gmhightechperformance.com/