High Octane fuel in Illinois

When you say "out of the pump" Do you mean at a gas station or at a speed shop? What is the cost.

If you live in Rockford have you tried Byron Dragstrip? I know it is closed now but they will open in Mid April.

With 10.5 CR it would be nice if you could find some 100 octane and mix it with some 93. 50/50 mix would be around 96.5