You are barking up the wrong tree! First you shouldn't use a glow 2 stroke engine because of the fuel consumption and high RPM. Recommend using either a glow engine converted to gas or a desiel engine. You need the carbarator because the power output will vary with electrical load, you need to hook the carb to a governor that will give a constant speed, unfortunately a straight venturi will not give a constant speed as the load will cause an RPM change. You will probably not be able to get many HP charts. Model Airplane news did some about a year or so ago, you might contact them, but of course if you convert them to gas you can throw the charts out the window. Suggest you take the glow engine curves and convert the torque to a reduced amount based on the differance in glow and gasoline. With a less powerfull fuel running at say 6,000 rpm for 200 watts plus inefficiencies I think you will be in the .40 range. After using this method to select your engine you could buy an inexpensiver dynometer to make your own curve. I think I recall one made of wood that cost less than $200 US.

BTW. Here is a usefull link

http://www.powereqpts.com/calculator.htm