[soutthpaw]

I think you are gonna have to wait for Bill to answer that. My guess is that it would need to be a custom tune... if he has not already written some E85 tunes then it would probably require some live tuning. Though as you can make some significant changes using E85 esp to the timing due the the higher Octane ratings I am sure the net result would be much better than running the stock (factory) program that is still programmed for regular gas