Fuel Pressure Gauge/Coolant Temp Gauge

[S2X01]

Trying to install an electric fuel pressure gauge on an 85 WH1.
I'd like to pull the schrader valve from the front of the left side fuel rail, and adapt the 1/8" npt sender to fit there.
Is the port there NPT or AN?

Also I'm looking at things, and it seems there's 2 CT sensors near the thermostat. One has 1 wire, and one has 2.
I'm assuming the 2 wires is for the ECU, and the one wire is a dummy light. Sound right?

 

[Rob_85Ttype]

It's not NPT. It's either AN OR 37 degree JIC. I used a 37 degree JIC when I installed a handheld gauge with a hose.

Yes on the CT sensors.