Fuel sending units read WRONG time after time!

The mod is using a variable resistor (POT) either in series or parallel with the gauge to get the meter reading correctly. I am using a 100 ohm and 24 turn pot.
I did not want to mention that until I knew for sure if it would work. I do not know if I need to put a cap or coil in with it.
Believe me, when I know I get it to work. I would have told you all.

I don't know about everyone else's panel I usually have mine on the bench and use my power supply and electronic parts to get it to work. I tried hanging it once, but that did not work properly.

I think the temp sending unit is screwy. The fuel sending unit uses about a 100 ohm variable resistor (reostat) and the two gauges seem to work about the same. So 1.4k ohm temp sender is way too high for the temp gauge in the cluster