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Old 12-08-2012, 03:58 PM   #276
Greg Hill
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Join Date: May 2006
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Default Re: GM Releases 2013 bogus HP ratings at PRI show

Quote:
Originally Posted by Chad Rhodes View Post
so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.
71 and 72 also have a Holley, just less compression and different heads.
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