Hey im new to posting up on here....i wanted to know wat exactly needs to be done to put some crower stage 3 cams(405's) in my ls....i already have a ported head wit valve springs an retainers....please let me know asap....

 

a good set of valve springs and retainers and some high compression pistons. and a really good tune. being ur ls doesnt have the advantage of vtec ur idle is gonna be weird.