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cam advance
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  1. 70-83 Tech Discussion Forum
    An “A” cam from a ‘71 240Z is MUCH better than a “C” cam from a 260Z even with 0.004” worn off half the lobes. It brought the compression up 5 PSI across the board and vacuum went from 15” to 19” Hg. I used #2 cam timing with a new chain so the notch is is advanced ½ of the line. It hasn’t run...
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