Just spend some time clutching. You can have all the power but if you're not using it there's no point in having it.
If you want that power put your machine in a dyno. And clutch to where your power is. I've raced snowmobiles on the grass and ice for years. If your not in your powerband your wasting time and money
They put a rev limiter there for a reason.
I've spent many hours on a dyno and you can rev the hell out of a motor
Example. My pro stock 800 it would rev to 10,000. But the power was at 8,350