For anyone else watching this
Majority of the time between A070 and A100,
And.........
The difference between 75 and 100o RoP is is about 2-3lph and with what I've read 75o is starting to get close to dangerous at what I would consider a fairly high power setting of 2650 or so and say MAP of 22.5.
I doubt you are in danger margin at anything above 7500, at 22" regardless of RPM you can put the mixture anywhere.
I stress again EDUCATION.
"It is not what you dont know that hurts you, it is what you know that is not so!"
Sounds to me like you need some minor injector tuning, and some education, and you will be right on it.
I must stress one SERIOUS thing here, the education side of this is more important than just fuel savings, you can install all the good gear you like, but if you do not know what it all REALLY means, you are no better off.
Engine fault diagnosis can save you thousands, just by knowing what the EMS tells you. your LAME will be stunned, and your bills far less.
AeroZEP