Time to trim down the baffle pieces to fit under the cowling. I made up 4 spacers out of wood. I cut a notch in both ends and used them to hold the top cowling up 4" above the lower cowling. I made a 4 1/2" length scribe to trace the profile of the top cowling down to the baffles. It worked pretty good, although it was still a bit of a challenge to get my arms in there.