At minute 41, the cam plate is removed. I don't see plugs in the two oil galley passage holes. Some people put plugs in these holes behind the cam plate. Did the factory use plugs there? If not, is there any reason to plug those two holes? Thank you.
You really don't need them. The retainer plate blocks them off. No sealer so there may be a little seepage there because of no gasket or seal. If your pumo and bearings are in good shape it might not be an issue.