Octane Rating

[CIP57_imp]

I asked this in another thread, but this seems like a good place to re-ask:

I have read that bikes like mine with the cat. removed and the stock (and unfleshed) ecu will tend to run on the rich side. Would running with higher octane fuel improve performance in this situation? Note: I understand that the actual mixture would still be rich, but would the higher octane gasoline burn better in this situation?

ES,

My bike ran best with 89 octane. I don't believe the CB has enough compression to benefit from anything higher than 89. When i ran 91-93 there was a richer smell coming out of the exhaust with no benefit that i could feel.