Reply to "temp gauge"

I've got a Fluidyne aftermarket radiator in the Standard Upright position and it's got a plug with a sensor about 3/4" diameter with an Orange wire and a Blue wire. Temp is usually 180 to 210 unless I'm 'feeling some horsepower' then it goes to about 220. But the temp gauge does not go up and down fast.

Just got the '73 Pantera and trying to learn all this stuff. Does it sound like maybe this modification has been done already on my car, there is no other sending unit on it and I assumed these were the wires for the fan sensors. The installation looks professional and I have receipts provided from Precision Pro-Formance and PI Motorsports including new push fans. It's formerly a Southern California Car, Newport Beach, for 23 years.

Can I safely assume this was probably done already? Or at least, does it sound like the temp gauge is responding alright? Fluidyne, PI Motorsports, Precision Proformance, surely these guys, if they didn't do the installation, must have either engineered in a better sensor/sender location or had it as a recommendation in their installation sheets, right?

It would hurt to blow up the BEAST from overheating while I thought it was OK. What can I safely assume? Anybody? Surely many of us Fluidyne equipped Pantera owners must want to know the answer or at least a few clues.... Thanks.