You are correct to put on the pressure tap. Jtec does not supply so that you can put wherever is needed.
As for the refueling system. Yes, the port to the tank is to the clunk hose. If you have doubt about which on is which. Put a short piece of hose on the refueling adapter. Insert into the refueler and blow. The port that has air come out of it goes to the tank. It shuts off flow to the engine carb.
Good Luck,
Twinman