Hey Guys with Magnum Air Gap

I have a Hughes air gap on my 408 in my Jeep ZJ. Its basically an Eddy intake cast with Hughes name on it. Anyways, the early ZJ used 2 temp sensors, one for the PCM and one for the gauge, the manifold only had one hole. There was a spot for the extra sensor it just wasn't drilled and tapped. So I drilled and tapped it.

So I would just enlarge the hole you have and re-tap it. Then the sensor is where its supposed to be and coolant is flowing around it.