Silly me, I should have known a step forward is followed by step back!
Comparing the new lower timing gear to the old it is certain that I needed it.
The ends of the teeth are noticeably broader, indicating significant wear to the old gear.
Now, if only it were the same thickness as the old one!
.097" thicker, possibly not a problem?
I can thin it down if I must, I even have a guy with a surface grinder to make it an exact match.
For a final frustration I just took the timing chain out of the package, it has a Master Link!
I always consider a master link the WEAK link, and experience has born that out.
So it seems I am on the hunt for a different timing chain.