RE: thewingsmaker.com - midget mustang
i dont think the bisson will fit unless you hack the bottom of the cowling out. The .75 would get you to your achieved 100 if that is what your goal is. I would mount it inverted and get some os extentions for a 91, or better yet give jett a call and see if they have extentions for that engine. when i have my engine mounted i will post pics.
ken