This was discussed in another thread, I wanted to create a thread on this topic as we have a lack of info in this section.
A few members have shown me an awesome, cheap, and unusual method a member used to fuel proof the OEM fuel sender so it won't be corroded by e85 fuel. I'll get some more research done and post pics of my progress.

I'll make sure no one in the vicinity will be smoking :kneeslap: