Wowzer Zowzer!!

I'm with Bob!

That said, I used to race the daylights out of go-karts when I was a kid. Homelite and McCullough engines that we would squeeze 20-25 horse out of. The compression ratio is fairly easy to raise by shaving the head as you have no valves to worry about. Thinner copper gasket does the same trick.

A word of caution - the spark plug clearance is critical and you need to check before you mill the head - Also bear in mind that these little buggers run hotter than the hinges on the gates of hades and will burn a hole in the piston in a heart beat. If you're going to raise the compression, back down one heat range on the plug and go a notch richer on the mixture and use a good two-stroke oil. I like RedLine or Honda HP. We raced Suzuki and Kawasaki motocross at 50:1, but rebuilt the top end every other race. The sponsor had a fresh motor in the truck (it was a nice truck - complete machine shop inside) ready to go and rebuilt between motos at the track You probably need to stay at 32:1 for what you're looking at.

Have Fun

P.S. Update the brakes on the bike and send a picture.