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You are looking at the driver side of this intake manifold. There are TWO sets of DOUBLE holes. Find the set of 'double' holes toward the rear (right side of picture). The BOTTOM, threaded hole in that pair of holes is the vacuum source for your wipers. There is also a similar DOUBLE pair of holes toward the front (left in picture). The bottom, threaded hole in that pair is source for distributor vacuum. Same as JSeery picture above, but a little larger...easier to see! DD
