Wow, fuel prices here are literally one-third of that, fuel station near my house has 91-octane (RON+MON)/2 for I think $2.25/gallon? Even still I'm happy my engine will only be 9:1 compression I should be able to run 85-octane regular gas or at the very least 87-octane midgrade. Too bad I can't ship you a barrel of cheap American gas :lol:
With good quench and compression like you're building for, those heads which have good air velocity esp. with the smaller intake valve, and the Hughes roller cam, I bet that engine will run great at all speeds and have a nice fat torque curve for the relatively small displacement.
