Anyone know what's supposed to attach to the 3 holes in the photo? I'm guessing for the tach sensor some cars had? I just got this car and was looking for the oil leak and appears to be coming from these while running. Or maybe they are just leaking oil from being filled from the oil leak above? Lol.

Btw it's an 81 300d.

https://www.amazon.com/clouddrive/share/cfFqgT6ie4tpbuFfIZ2mtwTr0aJ4XepgjPDFHoXKyKu