Ok I've been doing alot of reading today about prot timing and mods for assorted motors but not much comes up for the Ryobi byond the basic conversion and reed valves...

I know it's limited by it's weak conecting rod so I'm looking at mods to allow it to swing a bigger 2 or 3 bladed prop in the same PRM range.. Say 7000-8000rpm

If I were to remove the case to clyinder gasket to raise the compression I know it will also increase the intake timing and reduce the exhaust timing.

There isn't much you can do about the intake timing but would it be reasonable to open the exhaust port to compensate for the lost timing? or open it even more to make the increase in exhaust timing match the increase in intake timing?

What about the transfer port?

By doing all this wil I move the power band to high? or can I still make good in the 8k range with a larger prop?

I'm sure someone will say "put down the dremmel and walk away "