ca18detottpulsarmanifold27

With the valve cover removed, cut this nipple close to its base.

Test fit the manifold and valve cover to make sure you have removed enough material.  Then remove the cover 1 more time for additional modification.
Once cut, use a flat head screwdriver and fold the edges of what is left of the nipple inward.  Then tap the piece into the valve cover using a hammer and extension.

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