Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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All 69 L78 and l72 used 6/7 tach for the entire model year. Z/28 switched from 6/7 to 6/8 in early calendar year 69.
Anyone know why Z/28 changed, and solid lifter b/b did not? |
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