We've done a number of cars with E85. Cleve's that they are talking about was a road-raced EVO that made 530+ whp on the stock block on E85. That's all he ever drove it on. We found that it runs at an effective 109 octane. The tuning on E85 and the tuning on the VP MS109 were very similar in power. You do want to make sure that your fuel system can handle a full 30% more than it needed to on 93.

Doug has done a number of big cars on E85. I've done a handful of smaller stuff, but Cleve's was the first "big" turbo on straight E85 that I was involved with. He went to twin Walboro's and 1200CC injectors. No problems after that.

Let us know if there is anything we can do for you,
Siegel