964 Exhaust Header Temp HELP!

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If someone can be so kind to check the temperature of their exhaust headers inside of the heat exchangers and at the flange where the header connects to the head. I'm uploading a picture for reference. I'm interested to see if anyone knows what the temperature should be at idle and partial throttle. Does any see glowing in their headers especially at night inside of the heat exchangers?

Thank you for your help!