Power @ < 9000rpm

I was trying to recreate a small bike engine that made maximum power @ 10500Rpm,
I can't get an engine to to make power any higher than 9000 Rpm.
Even with the cam profile set to max, short stroke / large bore.
Is there a way to get the engines make power that high?
I can't get an engine to to make power any higher than 9000 Rpm.
Even with the cam profile set to max, short stroke / large bore.
Is there a way to get the engines make power that high?