Fun part of all this is
You can take 15 cams that are in same family size wise from every maker--dyno back to back and you will be surprised how little diff there is--YES one will make 20 more HP on a 500 HP build but almost every 408 back yard built by anybody with any hyd cam --guys doing one engine not engine pros--will be between 475 and 500 HP so ....it is not a life and death deal--you select a cam that is not too big to live with and drive the way you intend to drive and go with it simple as that--who cares and who will know that it is 475 or 495--big deal
Single pattern cams work Great --dual patterns are way over rated