Completed bonding of the air duct and duct interface to the lower cowl.
There is still a little more work necessary on the lower cowl before it is totally completed. All the Cleco holes still need to be filled with a flox mixture, so will do that when I tweak the previously mentioned spots. In addition, there is a round gasket (looks like a round door seal gasket) that will be glued onto the perimeter of the duct interface using high temperature silicone. The gasket will create the air seal between the duct interface and the frame around the radiator. The last step is installing a protective foil heat shield in the high heat areas near the muffler and exhaust pipes.