I see some people mention this, but cannot figure it out. Ultimately what I want to do is somehow calculate max torque for a given cyl airmass vs spark advance. Should help guide me if I've gone too far on the spark or not. If the torque doesn't increase anymore, than I met my limit.

Am I crazy and this cannot be done, or is there a semi accurate way to do this? (though I know the torque values won't be accurate vs a real dyno, but gives me an idea).

Thanks!