Ive read that a cam acts different in different size engines ie, a 224 duration at .050 .500 lift will seem/act like a bigger cam in a 350 vs seeming/acting like more of a mild cam in a 455 or stock in a 502. Im wondering if this is true? Im thinking of doing a cam and intake on one of my 215's and im also looking at cams for my 455 so I have those type of specs in mind. I dont want to put a cam in it that is small for a 455 but will act big in the 215, its in front of an auto will stock stall. I have a 212 duration .490 lift cam in my 181ci 4 cylinder nova but idk if it idles/sounds built because the cam is big for the cid or because its not running perfect.