Converting to E85 - Planet E85
Jonny Energy quit selling a few months ago, he was out of Chicago, I got 61 hits on Ebay for conversion kits, I'm pretty sure they all do the same thing. Some give a little extra fuel for cold starts. Some have a dial to fine tune, but all you can really tune is trying to get to 0 long term fuel trim, the cars going to maintain stoich.
As long as you don't exceed injector capacity and are OK ignoring a CEL most cars don't need anything IMO(unless running a turbo or a whole lot of full throttle full load). Get a SG2 so you can watch long term and short term trim and just run it.
I haven't done that myself yet, but next fill for Stratus will be a partial with E85.