Timing is not the only reason E85 makes more power.
I have personally seen a KB 2.8H car running 22* timing make 785 on C16. Drained fuel retuned and with 22* on E85 make 846 RWHP first pull.
Yes I know this is another twin screw car but it does show it works!
Try to do that with ANY fuel that you can get at the pump for around $2.50 per gallon. There is none!
So did Harold's car on ModFords....same timing...C16 to E85 was like 685 to 720. That still doesn't mean its going to do that to an inefficient ported eaton car. There is obviously more to it than just fuel and timing. It's not "plug and play" like so many say it is. I still have yet to see results from people i know that compare to everyones 50rwhp. and imo, its not a TRUE test unless both are tested in the same day, same correction factors etc. Too many variables.