cam shaft 284/484 and new lifters

Is this a MP 484/284 cam or Comp 20-671-4 cam????
I did not buy this cam, it cam with a rebuilt 360 that I got with my 70 Duster and I can only go buy numbers on the cam. here is some pics. I believe that I scribed the part# on it, but not sure! PS. I did not realize so many would be that interested in this cam!

DSC00232.JPG

DSC00233.JPG

DSC00234.JPG