Adding race fuel
Unless you're data logging, it could be darned near impossible to tell if you're knocking. Sometimes it's very subtle, and the computer pulls timing before you can hear it. If that's happening, you'll pick up a little power with better fuel.
I would give it a try. Mix it 50/50 with pump fuel, and see how the car does. The worst that can happen is that you spend a little more money for fuel.


