Vacuum advance information and myths

RB,
The reason you are not posting anything is because there is nothing to post. Full of baloney as usual.
You said in post #90, smart people build engines that do not need 30* of [ idle ] timing to run.
When I asked in a subsequent post what the 'formula' was, you said 'Math' in post #98.
Second time asking: what book as the Math?

I know I will get some bullshit answer because there is no book, no Math & never was...