5.0 Engine Bay

There's an o ring around the dist. It's usually included in most lower intake gasket kits. Pretty easy fix but you need to remove the dist and restab it correctly and set the timing. However, a more likely cause is the lower intake manifold is leaking oil. I'd grab a lower intake gasket kit and plan on yanking the lower at some point

Also, your dist is not plugged in.

You'll want to plumb up the charcoal canister. Line from rear of car connects to one port and then the line with solenoid connects to front port of intake manifold. I can see the vac line present, but it's not connected to canister

Yes. The vac line connected to that probably runs to the front of intake manifold. If so, connect to that short 4-5" vac line hanging off the canister.

On the other port, there should be a hard plastic vac line running from just behind pass apron to the canister. It comes from the gas tank