383 oil pan leakage?

I have 383 in the RR that after driving or just running it up to operating temp next day will show an oil drip hanging off the bottom of the flywheel inspection cover plate..weep hole. Had the rear main done less than 300mi ago. I guess in some cases that does not matter. So I have been trying to determine through investigation that it might be coming from above and finding its way to the lowest point. Just replaced the valve covers (cork) gaskets with a very thin skim coat of oil resistant sealer.
Also checked the valley tray bolts at the back of the intake manifold and all appears dry.
Which brings me to this, when looking at the oil pan where the gasket/windage tray/gasket/pan come together like a sandwich it seems to be wet. Could the oil be coming from this area somewhere in the trail of bolts that put it all together? I may for peace of mind drop it off of the motor and redo it and while I’m there have a look up inside to the main cap for signs of oil leaking.
Thoughts &ideas welcome!
Thanks!

That's not a leak, it's horse power piss. I could be the back of the pan, there are 5 sealing surfaces with a windage tray. I would remove the transmission inspection cover, clean it all up and run it. That might give you a better idea. I've seen guys replace the rear main, start it up and it still leaks out of the side seals

Hard to say without seeing it but yes it's definitely a sandwich of parts and difficult to avoid any leakage. I've had luck going with the Mancini Billet rear main seal retainer and the one piece rubber oil pan/windage tray from Summit. Sorry not much help but just my .02 cents about my experience.