I searched the forum for threads on this but didn't find any. I'm looking to do a cam swap on my 06 5.3l chevy. I've gotten a diablew custom tune and long tube headers with y pipe and flowmaster exhaust along with a CAI. I average almost 20 mpgs not worried about it though. And Im pretty sure I've got the 3.73 gear ratio. Soon to be 4.10 With all of this I still want more power. I'm looking for a more mild cam not anything crazy. Just had some questions, like would I need better springs? Rockers, lifters too? Should I get a better timing chain and pulleys too? Anything else lol? I just don't want to cut any corners or anything like that. Any help, pointers, suggestions, ideas very much appreciated. Of coarse after I post the thread, I see "similar posts" sorry guys.