You never listed what piston you are using. Oh, I forgot you haven't decided on pistons because you might go to a $6000 dollar blower. How do you know you will have 11.4 to 1 compression when you haven't bought pistons yet? Where does a 19 yr old acquire this kind of cash? Why buy a 64 cc head when you know you have to run racing fuel at 7 bucks a gallon? Your going to push it to its limits because you can simply buy another one tomorrow if it blows up?
"I" haven't decided to sell the 400 but "we" just want to see what others would do. It sounds to me like dad drag races. Go play Gran Tourismo and stop wasting people's time.