What Fuel

[Philip]

Originally Posted by Xseries

Using super unleaded is the best way currently to avoid too much ethanol. I have not done enough miles in my Bristol to establish consistent mpg, but in two other cars I found I obtained about 5% more mpg with the super unleaded which completely offset the higher cost of purchasing it.

You’re not really going to see more power or economy on something with a carb unless you’re advancing the timing to take advantage of the octane.