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Originally Posted by brainbug007

Ya the blue stuff is fuel resistant, pretty crazy stuff really (http://www.hylomar.com/index.php?opt...62&It emid=70) I'm guessing though it'd probly be cheaper to remake the manifold than have it skimmed?

Its fuel resistant but never sets and the vacuum off the engine will eventually suck it in

As said ideally skim the manifold but if its only slight automotive silicone will seal it

Actually take the manifold off though dont try and seal around it, dont use so much that it squeezes out lots of excess into the manifold when you tighten it down