Can't figure out what this is.

Looks like part of an evaporative emissions system. It's a solenoid-operated pneumatic valve. It would go between a charcoal canister and the air intake.

Edit: Vapor canister purge valve. Found it at Walmart.

https://www.walmart.com/ip/Oem-Ford...er-Purge-Valve-Assembly-E37E9C915BA/492492253

That was the part I needed thank you.

Have another part I'm not sure what it is or where it goes.

Knock sensor.

Thought it might be a temp sensor at first but the part number is written right on the side. Ford part numbers often end with a revision mark, e.g. -a or -aa, especially parts for older vehicles.

F37F-12A699-AA

It'll screw in to the side of the block somewhere, I guess. Never seen one that looks like this, but it's basically a microphone that listens for detonation to tell the ECU to adjust timing. Usually they're shaped like a donut and are held on with a bolt.

https://www.autozone.com/engine-management/knock-sensor/duralast-knock-sensor-su10550/99584_0_0