Using the stock temp gauge with a 5.0

[63BlueMGB]

My question is just as the title says, I want to use the stock oil/temperature gauge I have figured out how to use the stock oil part of the gauge, However I do not know where to tap into the engine coolant system on a 1990 5.0 mustang engine. I could tap into the coolant passage on the intake where a temperature sensor already exist, I could go between the engine and the heater core or I could go up by the radiator. Where do I tap into the coolant system and why? What location gives me the best indication of engine temperature.

Thanks again in advance for any help  that is suggested.

[ex-tyke]

I could tap into the coolant passage on the intake where a temperature sensor already exist....

You've answered your own question - it's where the system coolant runs the hottest ...right before the thermostat!

[63BlueMGB]

Thank you I was thinking that was the best spot, However, I was not sure and wanted someone to confirm it for me. Thank you!