Thinking of going to E85 on the Dart

I switched last year from race gas to E-85, plus went to a 4150 from a dominator. I had pro systems do the carb for me. I live in Wisconsin, and struggled with the fuel from the pump all season. I only had actual E-85 for a brief period during the summer. I had a O2 sensor, but you have to check fuel to even know what ratio you need to be running. From my experience, I will never run it again. Yes, the car ran cool, and picked up power, but it is not user friendly. I'd rather just run race gas. If you live in Arizona although, you'd be fine. Nice dry, constant climate. For my blower build I'm not even considering E-85.