I use one of the threaded ports on my Flowcooler water pump for the stock water temp gauge sensor, the other port on the pump is used for the heater hose. I put the EFI water sensor in the block next to the thermostat, I wanted the EFI to read "true" temps from the sensor in the stock location.
The stock gauge seems to "act" the same way with the sensor in its new location.
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