I did a Google search on E85 fuels, and read several reports from various sources over about 3 hours. Almost all of the reports indicaate the research shows that E85 fuel produces about 3% to 5% more power than gasoline, once the engine is adjusted for E85 consumption.

1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.