69 SS 427, I put on a set of ceramic coded super comp headers about 2 yrs ago. This past winter I re-placed my intake, and did a carb. change. I had a Edlebrock 650 I replaced that with a Holley 750. My headers seem to be blueing a little at the end of the flange of the long tube. And I also am starting to see some slight surface rust. The rust polishes off and the car is garage kept, I really think that the car is running too rich. Could to much fuel damage the ceramic headers? I like the new carb and the motor idles fine along with running at proper temp. Is this something that just happens with aftermarket headers or is it a jetting problem?

~Thanks for your help~

 

It is the heat and humidity, not the fuel.