No, I think the reason Edelbrock never released the E85 version is because the E85 does eat the carb. The prototypes that I saw were coated or anodized. But evidently they couldn't get it to last or else they ran into some other problem that I don't know about.

Even E10 eats the Edelbrock carb body. The 800 cfm carb that I had on my pickup truck needed to be taken apart and cleaned out every year due to internal corrosion. My guess is that E85 would be much worse.