The cowl fits pretty much like it shows in all pics even the ones on there website, If your talking about the gaps between the cowl and the fuse I don’t mind that so much. The instructions show adding a small block of plywood between the cowl and top of fuse for spacing, maybe this is to allow for airflow. I haven’t installed the engine or done any cutting to the cowl yet but that will be my next project tomorrow if I get to it.