RE: ignition system for any kinds of conversion gas engine
yes , it's can be down , but way you want to conversion .91 4C engine to gas? just like the CH-ignition company said . we recommand at lest 1.20 size . if the size under 1.20 2C , I think nitro engine are more good then gas . by the way . if you want to conversion any engine . you should draw a holl on the shift and put an small megnit inside . that make the sansor know the time to fire the spark.