This was on a set of notched valve covers I purchased. The screen looks really clean for it's age.

The part number is FB55. It's an AC part. I didn't see any Delco after the AC.

The valve covers were a bronze/copper color, if that helps. Asking $25 shipped obo in the lower 48. Thanks.

 

How about $20?

 

Any chance you still have this?

 

I have no idea? I have to check. I'm in the middle of moving, so all my parts are still at my other house.