1. Removed the prop with the help of my friend Tom. 2. Reinstalled the cowl fitting jig. 3. Installed four temporary pop rivets to hold the top skin to the firewall (and thereby holding the firewall in its proper position. 4. Adjusted, leveled, and triple-checked the position of the top cowl. 5. Drilled and clecoed the front of the top cowl to the jig. 6. Adjusted the aft edge of the cowl and taped it into position to the fuselage. Drilled and clecoed it to the fuselage. 7. Lifted the lower cowl into position to check its initial fit. The intake snorkel was slightly in the way, so I removed it.