Cams and Headers
Don't put in more than one cam, or else you might have a little trouble.
Really though, just take your time and read instructions a million times before you turn a wrench.
ls1howto.com should provide some good information.
um i would go to texas speed , a sponsor on here. call them up and have them help you
pick out a heads and cam package that works for you.
get, pushrods if the package doesnt come with some. and read the instructions to everything you get as stated above.

