Oil pressure sending unit

my oil unit is leaking a small ammount of oil down the side of the motor. Is there a common place where or around these things leak? Its a tight fit back there and I wanna get everything fixed on this car that needs fixed before I start doing mods.

Huey

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87 Turbo coupe, 5spd, full factory options, custom 3 inch exhaust

There are 4 potential leaks in that area.
1. the oil sending unit itself where it screws into the supply manifold.

2. The supply manifold where it screws into the head.

3. The turbo supply line where is screws into the bottom of the manifold. This is hard to see without removing the upper intake and moving some things aside.

4. a crack in the oil supply line.

you need to make sure what is actually leaking as it's all going to look the same.