My buddy is selling this cam i am wondering if it would do good in a 5.3L? and how would it be at idle? i got this from a different form "For sale is a custom grind COMP cam for an LS1. 224/227 .570/570 on a 114LSA. It has only been used for a month and made almost 400rwhp by the original owner in an A4 Z/28. You will not be dissapointed." thanks for any help