I have the Flex kit, but I only use it to see what my Ethanol % is. I'm running map 4 because I still run 100% meth. Like that fact I can pull back to back without timing drops.
Originally Posted by spool twice
+1 Best quote in this thread
I've been running an E50/93 mix + methanol since Jan '12 running 17.5psi, and using my own judgement despite being an amateur at the time; this was long before the current array of tune's that auto-tune with built-in fail-safes.
Take it from people who've actually had the experience with E85 mixture's, it's not hard to do.