Well, due to the supercharger being mounted upside down in this application, the stock fill Port is useless.
So I've decided to take the front snout off, since I have to do the seal anyhow, and weld in a 1/2" NPT threaded collar which will allow me to install an oil sight glass, so I can easily see the oil level at any time.
I'll measure the height of the factory fill port and use that dimension to locate my new sight glass, but on the correct side for my upside down orientation.
Also, on the top of the snout assembly, I'm going to drill and tap for a 1/4" NPT plug to use as a fill port.
Yes I know, the picture is HUGE.
It'll be a 1/2" NPT male thread and the hex flats are about 7/8"
For reference sake.