Cloyes timing chain keyways incorrect

[1] Unless the cam was degreed & compared in another block, I don't see how post #1 proves that the t/chain set is at fault; it could be the cam or a bit of both.
[2] I believe Mr. Gasket made an offset cam key, but I think it was one only, not a set.
[3] I have heard from reputable engine builders that some Rollmaster TC sets were out a few degrees on another engine brand; do not know if they still are or if the situation has been corrected.