I would suggest working up with it very carefully. Without an intercooler, your charge air temp is going to be high. You can richen the mixture for cooling, but then your ignition system will have to be up to firing that rich mixture. If you experience miss-firing and you know you are way rich, try leaning it out slightly until the miss-firing dis-appears. Check your O2 and make sure your not too lean. Combustion chamber temps are very critical with alcohol. Don't go to the line with the engine too hot. 120 to 140F works for me, but then, I'm intercooling.
Keep this in mind! Alcohol does not detonate!!! It will not give you a warning that you are at the pre-ignition threshold. You will just be in it, and I have yet to meet anyone who can get there foot out of it fast enough. It is nasty. Things break very fast. It sounds like a real bad rod knock and by the time you recognize it, it's too late. Your picking up pieces off the track. Be careful. Keep that nice machine in one piece.
