Edge finished CB-707D and CB-701D center baffle support brackets. Rerouted cylinder #4 fuel line. Modified CB-707D rear support bracket and relocated Plasma ignition coils. Manufactured CB-706B spacer. Installed CB-706A cylinder #4 baffle. Match drilled L&R aft baffle to center support. Installed AN3 bolts to rear baffle support. Match drilled all cylinder #1 baffle parts and enlarged prop oil supply hole to 1".