According to some of my G.M. manuals the compressor is supposed to weep. Many Buicks with the A-6 have covers that contain this and direct the small amount of discharge to the ground. I copied one from a friend of mine who got one off a Buick in the junk yard and installed it on his 66 GTO. I've got one on my 63 Catalina and my 69 H-O Lemans.
My buddies GTO
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