There are no 1.67GHz MacBook Pros; the only intel processor in a mac that's slower than 1.83ghz is the 1.66ghz core solo in base model first gen intel mac minis. Very intrigued by this issue. Try different ram and see if the ram is affecting/down clocking the bus maybe?
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Or maybe you put a 2.0/2.2 generation (macbookpro1,2) logic board in your a1150 (macbookpro1,1) computer?
There are no 1.67GHz MacBook Pros; the only intel processor in a mac that's slower than 1.83ghz is the 1.66ghz core solo in base model first gen intel mac minis. Very intrigued by this issue. Try different ram and see if the ram is affecting/down clocking the bus maybe?