Want dyno results? No this is not E85, but how about a shot of denatured alcohol on top of good'ol BP 92 octane. Boost: 25-> 29psi.
timing: 9->16deg.
power: 318whp -> 358whp.
torque: 300wtq -> 348wtq.
more graphs detailing boost, AFR, etc:
http://www.scheides.com/gallery/evo8?page=18