Limitations
Follow van's (airspeed, G's, weight, CG) limitations you will be fine. Can extra HP get you in trouble? Yes, but you have the "get in/out of trouble knob" on the panel (throttle).
What are the specs? I assume it has the same or similar dimensions and weight as an IO360 (200HP). 10 HP is not that much and may be worth 3-4 mph top speed. Climb will be much better of course. G