Very nice looking engine you got there. I have built one of these and it is a great flying warbird. I hope you have reenforec your firewall and cowl for this plane the stock firewall will breakway very easliy if you hand to nose the plane over and that will just ruin the stocl cowl if you don't renforce it. I am building my another CMP Zero and using a RCG 50cc engine in it with electric retracks this time.