It's too short of a time frame but maybe doable. If you fly out at 3:55 you have to be back at the airport by 2:25 PM, this means you have to leave the MET at 1:25 PM.
It will probably be a 45 minute trip to the MET from JFK so landing at 11 you will make it to the MET at around 12:15.
This will leave you with 1:15 at the MET at best.
It's too short of a time