The goal is to get more power. What would happen If I raised the compression ratio of a 2-stroke. For instance I have a Zenoah 41cc from a back pack blower. It runs fine on Coleman, don't want to start a flame on that, but it shows the compression is very low. Coleman is about 40 octane. So if I flycut the bottom of the jug, say, about 100 thousands and domed the piston to match I would raise the CR some. I would have to raise the ports about 100 thousands too. I have a good lathe and a mill to do these mods accurately. Hypothetically if my goal were 10:1 I would then need to run hig test gas, but that is no big deal. Would I gain any significant power increase? The engine is a pig anyway, but, would I ruin it if I tried?