Best gas for our Mopars

I plan my motors for the environment they must survive. Know your environment. I count on 91 octane (not all stations have 93), and I count on 10% ethanol. I am perfectly fine with 8:5 to 1 compression for the street. Less compression allows the total timing to be bumped up a little more.... My "low dollar 318" might have 8:1 compression, maybe. I also have initial timing at 22* and total timing at 42*. No pinging and E.T. proof this is where it likes to run.