Dave, I have a Taurus 3.2 in my Yellow Jug and it fits within the cowl. I plan on using a side mount muffler and either exhaust in the scale location or just out the bottom of the cowl. I also have a scale chin scoop and radial for the cowl. Don't forget that you need nose weight in that plane so you need not worry about having a light engine. Regards BobH.