Ok well my friend and I started experimenting with it officially today. I am running 10% right now with zero issues. And MY PINGING IS FINALLY GONE! And the exhaust even smells much cleaner. And my friend with the vortec camaro with 150 shot nitrous is running about 50% and his a/f gauge reads stoich still and he says his exhaust smells cleaner too and the car still runs fine. So little by little I will mess with things and update here till I am on full E85 and let you guys know about it. Next tank full will be 15% and so on. So far I am loving it.