273 4bbl, carb replacement?

4spdragtop said

Did you verify new thermostat before installing?
Similar issues with my 273. Turned out to be thermostat.

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Make sure you test your new thermostat in a pan of water on the stove with a thermometer. I have had a rash of bad thermostats right out of the box. They were NAPA's though. I'm loosing faith in their quality. LOL