This was on me also. The builder suggested the cam for me, but must not have relayed that to whomever they sent the heads out for rebuild. I should have done my own cam/spring matching homework, then found out where they were going and made a call. I assumed the head guy knew what cam I was using.
Lesson learned.
Sooo many details...
I do absolutely enjoy even this part, the tearing back down to see the results of how parts did or didn’t work together.