The only way YOU will learn about YOUR parts is to test them
I 've seen very knowledgeable racers spread misinformation intentionally and through them misunderstanding their parts
For instance on BB Mopar timing covers and stock balancer, do NOT mix early balancers with later (1966 and later) timing covers or vice a versus Doing that will make your ignition timing off by around 10 degrees
The early timing covers have the zero mark on the top of the straight timing tabs, the later curved tabs have it in the middle of the tab, around 10 degree difference