Drilled and enlarged 7 realigned holes in upper cowl. Reinstalled all grommets and fasteners. Fit cowl and all fasteners fit perfectly. Sanded second spinner back filler plate covered rivets. Checked prop pitch clearance on spinner and filler plates. Manufactured new ground cable from starter to ground block for intake system clearance. Removed bottom right lug from starter for intake clearance. Installed 4 floating platenuts for cowling nose section.