Imm’s Rhs Indy heads

How do you like running e85? I am collecting parts for a 440 small block with 360-1 heads and plan on using e85. Of course I am running up the compression to use the octane it has. Plus I can drive it on the street with it.
At this point being a new setup and not a whole lot of time/passes with it
I really can’t find and negatives about the fuel. Cheap consistent and available
Also seems to have a wide tuning window
So my review is a big thumbs up