As you have already surmised from removing the head, this ain't an unimportant issue. What "I" would do at this point would be to remove the camshaft and double check home boy's cam bearing install. Make SURE the wire will go all the way into the camshaft bore. Also, you didn't give a follow up on the head. Did gettin that glob out unclog the head? First and foremost though, I would inspect the rocker shaft before removing the cam. Might have another glob there. There's another glob somewhere. I'd be tearin the whole thing back apart if it was mine. A glob can be the ruination of a beautiful thing. Better to do it now........know what I mean Vern?