Gang, sorry if I caused some confusion. The pic from the '67 manual is not exactly what I have since my engine is a '74 455. conceptually, tho, the plate that needs adjustment is the one that comes closest to the face of the vanes as in Charles' pix, above. In the pic from the '67 manual, the plate in question is what the book calls the internal housing.
I was unaware there was such a difference over the model years.
Interesting that there exists such a difference in width of pump vanes! Perhaps this is a good example of the idea that "the cast impellers are better"?
George
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"...out to my ol'55, I pulled away slowly, feeling so holy, god knows i was feeling alive"....written by Tom Wait from the Eagles' Live From The Forum
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