My first e85 experience.

are you ueing that filter before the pump or after the pump? and thanks for all the great info on what you are doing with your car on the E85. i am trying to decide if i want to do one carb on E85 or two.lol

That should be used after the pump. Something like a 100 micron could be used before the pump.

"40 micron filters are recommended for use as a post filter in carbureted systems
100 micron filters are recommended as a pre filter in both carbureted or EFI systems"