I have a 9:1 440 in my Charger, I was wondering what gas you guys would run. I guess my choices are 93 (it might even be 92) Sunoco with ethanol, or ethanol-free 90 octane from Fastrac (I am not sure what brand the gas is). It's a street/strip car, it might see track 6-8 times a year or so.

I guess if it doesn't ping, the 90 is fine, right?

Anything else to consider? I obviously would prefer to run the non-ethanol if I can.

Thanks.

Greg