Cam break-in Questions.... On an engine run stand

I understand @yellow rose that you say at full advance. The best I can tell. the distributor has 15* mechanical advance and 8-9* vacuum advance maximum. So let's say 23*maximum. Can I set the #1 to 27*btdc and get the same thing ( 50* advance)? How do I tell full advance? After it starts up and running smoothly (I hope) with the carb adjusted for maximum vacuum, Should I then set it to 36*? Thanks for the help

@MoparMike1974 There is a cap in it. And we will open the shop and move it out