first off i didnt bother to sort through all the pages about cams on this site i dont really have the time. anyways i have a 74 cb750 the cam is shot from a rather stupid incident involving a backed out cam gear bolt that broke off the flange for the gear. So i got 76 cam off of ebay that i know should fit But is the profile the same. will the bike run slightly differnt or what. cam shaft preformance is not my strong point some info would be appreciated