Changed the alternator belt back to the 36.5" belt.
Secured the airbox plate to the carburetor, safety wired the bolts and filled all gaps with RTV.
Drilled the oil door to the hinge, and finished drilling the hinge reinforcement plates to the cowling. Countersunk the cowling for all of the hinge rivets.
Layout oil door latch placement, and make a .025 strike plate for the latches, drill to the cowling and trim the cowling to fit.