i know this may not be relavent but hot 4s or pi or something did a replacement fuel one day for it.
it was using methanol instead of ethanol and they used less methanol in fact a 40% petrol and the rest was methanol.
it could take more timing and made more power with the same setup maybe 10/20 kw over e85.
just again 60% methanol and 40% petrol and it wont eat through any thing but it can only be home made.