I have a Midwest AT-6 that I'd like to use a converted engine in. I have had glow reliability probs with this bird so I wanna go gas. Any suggestions for engine choice? Currently weighs about 15.5 lbs with Webra 120 and around 1.5 lbs of lead in the nose. Oh, its 1000 sq in. I figure I can go w/o the ballast with the gas motor with little weight gain. It seems right now the Homie 33cc is popular, but I'm open to suggestions.