Any books on vacuum advance and timing???????
If anyone recommends that you use the total timing method.... RUN!!!!
There isn't one strategy that works for every car. Set initial using the Vacuum method and it doesn't start when hot... what do you do? Setting timing lots of times is an exercise in compromises. Has to be a fluid approach.
I think it was mentioned, every engine is a little different. Any book numbers from mopar FSM won't be close to optimal, even for a stock engine in most every case.
Basically here's a simple method.
Set initial where engine wants it.
Find total number and tailor mechanical advance to hit that number.
Get springs that allow better curve.
Mess with Vacuum advance.
An engine that has a lean mixture requires more timing to "light" the lean mixture than an engine that is running rich. That's sort of where vac adv comes in. On cruise it adds timing so the mixture can be leaner. The trick - finding the balance. Another problem with vac adv is having the correct amount for the engine and having the right Vac Adv can or coming up with a method to pull timing out of the can.