Valve Floater; I just received my DL55 to put in my Giant Sun Dancer. (What a great bipe). I've got a couple of questions for you if you don't mind. According to the manual the prop hub to firewall distance is 7-1/8" which means I'll need to ad about a 1/2" ply plate to the firewall, I haven't even mounted the stand=offs or the engine yet, but I was curious about the stock muffler interfering with the cowl. It looks like where the cowl mounts to the fuse it's the same width as the fuse but almost immediately forward of that it flairs out quite a bit. Were you able to use the stock muffler on your install without having to cut the cowl? The other question is to get your CG close to specs., where did you mount your flight & ignition sys. batteries? I'm planning on installing the ignition module on the backside of the firewall so I can access it through the hatch. Any info most appreciated. Thanks in advance......Mike