what does the paint mean on a 360 cam?

I am rebuilding my 360 duster motor and i pulled out the cam. now when i got this motor the guy said he put a little bigger cam in (like just above stock) and I am trying to figure out what size it is. The numbers say ED L2177 on it and it has a yellow paint mark and orange paint mark on it. I have looked on the internet for it and cant find the size. Any help would be greatly appreciated. Thanks