Re: E85????
You could but why would you? E85 is basically 85% ethanol and 15% normal gas. The quality of it varies considerably, as Jimmy alluded to.
You could try it but you'd be on your own - everyone else runs methanol - you get better knock prevention, it's easily available and it's predictable. AFRs with meth are common wisdom but timing/AFR and performace with gas and E85 is an unknown in many ways.
Anecdotally, those that have run ethanol have had better success when they run methanol with normal gasoline.
e85 isn't likely to reveal any performance secrets. Up to you! :2cents: