This sat in an assembled engine for some years with a new timing belt installed. I was checking today and it seems to bind. It appears to be bent behind the first bearing on the belt end. You can see the assembly lube being "shaved" off the cam at the first journal. I'm guessing it assumed a bend from several years with belt tension and no rotation.
Maybe this is something to watch when using cams from jy engines? I have read about cams breaking (between #1 and 2 journals??)
BTW this is binding very slightly but I WILL use a different cam.
I may see if the "bend" can be reversed over several months by providing reverse tension in a spare head.