Bird thanks for bringing this up.
The brilliant Lake Speed jr, from Total Seal piston rings, had an in-depth look at E-85 available at the pump during one of his Engine Builders seminars... Findings were that, depending on many variables, it could range from 85-50+ ethanol and still be in state certified range. WTF...
Without a doubt if I were going for serious power I'd purchase E-85 in the can from a reputable fuel manufacturer.
We've been told by other local racers that this pump fuel we're getting is supposedly accurate... For the blown small block 10:5 Pro Street toy the max boost is relatively low at 17 psi and the mag timing is extremely conservative at only 26 degrees. Good Guys event cruising is doable, well the fuel consumption lump-lumping around is terrible, but the plugs say it wants some heat power but last Monday at Sonoma running 8.70's were safe and repeatable.
Knock on wood so far corrosion hasn't been an issue like running Methanol was in my pals funnycar. Spiderwebs of corrosion lines would grow overnight. That was a shocker, I'd never experienced that issue running nitro.
