I converted a few small gassers, don't remember what size it was...the power on gas should be close to FAI glow...I am quite sure Keith has researched the oil thing...Big Tigres work well on gas if conveted to use a small Walbro....If Keith makes large Tigres into gassers they will have the correct bearings for gasoline, there would be no point in going to all that trouble otherwise...Roller bearings on the stock crank are too hard for the pin...C&H did a few, maybe TKG will be commenting on this...
I converted a 3000 about 13 years ago...It's still around, in a seaplane...We used the stock carb and a Modelectric ignition coil mounted inside the mount..Rimfire spark plug..The owner tried reducing the oil content and quit when the rod siezed on the crank..We replaced the rod and went back up on the oil, no more problems...The glow carb is a little touchy and the coil should have melted years ago, but it's still running, just a few times a year at float fly meets...