Manifold Vacuum Advance what am I not getting?

Guys please keep in mind the following:

This engine is what it is. I bought it already built “as is”. I didn’t specify the build nor know what cam was in it or compression. Only after installing it I bore scoped it and read the stamping on the piston as TRW 12:1. I pulled a lifter and determined it was a solid lifter. Say what you want about the motor ..shitty build, pig what ever. THATS NOT THE POINT. I am just trying to make the best of it for now until I can afford to rebuild it.

The engine gave me the most vacuum and ran smoother with ~40° of timing. Some folks here (and not here like David Vizard) are not surprised that it wants that. OK so where do we go from here? Accuusing me of not knowing how to use a timing light ain’t right for two reasons. One I didn’t use one when I set that timing purposely. It was hooked up but I used my ear the vacuum gauge and my oil pressure gauge (to some extent) to GIVE THE ENGINE WHAT IT WANTED.
Also the first time I used a timing light was in 1978 on my 1973 Z28. I am not saying I know everything but I am always willing and desiring to learn more. I am forgetful and don’t always understand what you write. I am human and make mistakes. You guys are a great resource for me and others and I appreciate the help sincerely. But denigrating me ain't cool for me or this site or the future of this hobby! Intimidation WILL keep the younger ones away. It will I guarantee it. It will also shut good peple down and they will stop interacting here and disappear.
The hobby and this site faces serious challenges in the future and we are the stewards of its future.