What are you talking about? I said nothing that agrees with you. OP said he has 150K miles on the engine. Much more than my 18K. He’s changing cams and that’s a good opportunity to install a new timing set. Ford Performance has a damn nice kit just for that job and another kit will take care of the followers and lash adjusters. When I installed the new followers in my 2010 they were different than the ones I took out. May be just the oil hole or may be more to it. Not worried about it. Another thing I noticed was the gear on the crank slid right off when I pulled on it. I could rock it back and forth by hand do to slop in the keyway. The new Ford gear was much more snug. Do the job right and replace the worn parts while your in there.