Can you pull the distributor and prime for a second? You could also try hitting the starter, when you have it in a safe condition, so it doesn't fall, WITH the ignition de-energized.
I'm not sure what port you are talking about, but it would come from a pressure source.
Chances are, the debris didn't go far and would be quickly expelled when oil squirts out of the port.
A picture would really help. Also, is the pressure switch brass?