Shrunk the rear portion of the plenum to get a lower cowl profile while re-working the cowl due to clearance issues. Should have waited until the plenum was finished before making the upper cowl to begin with -Capt. Hindsight
Went to do the final fitting of the upper cowl and it was hitting the cooling plenum in multiple places. Had to do a lot of re-work to the cowl, and to the plenum to get acceptable clearances and profile.