If you plan on always using race gas, you will need to retune timing entirely.
why I have to retune timing if right now with stock values map and 100 octane fuel I just get down the retard near to 0?
If you plan on only using race gas sometimes, you should not tune for pump gas with race gas. Really really terrible idea.
I'm fully agree with you! sure I will use everytime 100 oct fuel, in case I must review direct the timing map