Hate to say this... 65cuda, your issue was installation error. It sucks tht this happened. I've seen this a bunch of times and was pretty common in the 80's when cloyes true rollers were popular. People would bring in a part and the instruction sheet was neatly folded just like the manufacturer had placed it in the box. Never disturbed or read by the installer.

There are marks on the crank gear for lining up with the cam gear. See the circled areas of the picture. I've seen guys put the gear on for 4* advance and then line up the zero mark on the crank gear, so this isn't a rare occurrance.

IMO, you got a good part and it wasn't mancinis fault your issue occurred. Another real good reason to degree in the cam. Had degreeing been done, you'd have caught the issue before the damage was done.

Again, it sucks this happened to you.