RE: Extra 300/140 Engine?
I'm not familiar with this plane but if it's going to weigh less than 14lbs it should fly ok. With a 72.5" W.S. it should be in the 12lb or less range.If it's in the 11 to 12 lb. range it should fly nice with the S.T. 2300. What is the recommended engine size for the plane? Do you have any links to see this plane?
Marty