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Pulled the carbs and intake last night in my quest to find what I think is an intake/exhaust/vacuum leak. The various carb bits seemed to be sealing okay, but I did notice something on the gasket between the header and the head.
The middle and rear branch seem to be discolored underneath where the header touches (you can see this in the pictures below). The front branch didn't have this discoloration. Is this normal or is this indicative of a leak?
Middle branch:
Rear branch:
The middle and rear branch seem to be discolored underneath where the header touches (you can see this in the pictures below). The front branch didn't have this discoloration. Is this normal or is this indicative of a leak?
Middle branch:
Rear branch: