figuring out advance timing

Old thread, but there's a very simple solution. As I try to preach on damn near a daily basis sometimes, ALL THIS is covered in depth in the Master Mopar Performance engine manual. It describes in DEPTH how to use a vacuum gauge to find highest cruise vacuum in conjunction with a timing light and get the timing curve SPOT ON. But no matter how much I preach it, it either falls on deaf ears, or somebody shoots it down with an stupid argument. Normally the arguments are that the MP manual is dated. That's pretty stupid considering distributors, carburetors and vacuum devices are also dated. Kinda matches up, don't it? You can get a perfect timing curve in a weekend afternoon REAL easy that matches your combo perfectly if you will simply take the time to find the information and actually READ IT.