how much oil dripping is normal ?

[Pa Joe]

Got my 28 tudor a few months ago, and after making a lot of repairs and improvments I would take it for a test drive. After I park it, I notice oil in the driveway. I know they drip a little. I had flathead 8s that did the same thing, but this is a good size puddle. Every time I run it then park it, I get the big puddle. Checked the tranny, still full, checked the dip stick, down a little. Just wondering , Whats normal?