searched and can't find answer
 

We all know pulling timing cost horsepower. Race fuel helps with detonation. Can't find anywhere that states increase octane by this many points and add this much timing back.

You probably won't either. Every combo is different to the way it acts on timing. Get it close to start off, and then let your plugs, and mph tell you what it wants. Timing and fuel wise.

Couldn't have said it better myself!