I run 110 Sunoco Leaded in mine all the time now. I don't consider mine a pussy car either. There is a huge difference in power on pump gas, it will only rev to 7500 on 93 pump, but with 110 it goes right to 9600 where my max power is.

Is it expensive? I buy it by the drum, so I save a ton.
I really think you guys with air filter and big mufflers and OBD / ODBII wont have to worry about adding the max gas.