I once had a 1/4 scale Bellanca Citabria that weighed 17lbs. Now I have a 1/4 scale Bellanca Citabria that weighs 16lbs. The 1 pound weight reduction made a huge difference in the way it flys. Before it was a "lead sled". Now it's a pure pleasure to fly and this is with a lowly Saito 150. Although I do see a nice Brison 4.2 on Ebay. Hmmm....Maybe I'll shoe horn that baby in there. I don't need no stinkin' cowl. Can you say Super Citabria!