i was told about a book that gm published, it was a step by step guide to tune a 350 with out any bolt on, explain perfectly tune carb index pistons etc. any one have a idea what book is called and if one for these newer chevys i have a 07 4wd cold air intake throttle body spacer exhaust and g force chip and bully dog programmer wanna do tune on engine componets for more power seein if a book on how to do it. thanks