Since I do not plan to use Rescue Parachute, I cover the 2 big holes on top of cowling. I use 4 layer fiberglass 280, MN275 epoxi, and peel-ply on inside. After drying over night, one extra layer epoxi on top, and Peel-ply. I let it dry next night, strapped to fuselage, with heat underneath.
