BIZARRE Spark Plug Color?

[savatreatabvr]

Originally Posted by beamn7

I know you said it doesn't get hot but I would certainly put a t-stat in it and 50/50 coolant mix. The main function of the t-stat is to slow the coolant flow down enough to allow the proper amount of heat transfer from the block to the coolant as well as keep it at the calibrated temp. Straight water has a lower boiling point than 50/50 mix. Straight coolant or straight water can cause overheating.

As for the plug, I would say that cylinder is running hot/lean just as others have mentioned.

I put a T-stat in it but it reached operating temp way fast and was slowly getting hotter so I pulled it out. I'll pick up another one maybe it was bad. I'm confused, how can one cylinder run leaner than the other 7 when it has a carburetor (Edelbrock 1407)?