Thread: cam timing
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Old 01-22-2011, 07:48 PM   #2 (permalink)
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Location: Manhattan, KS
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I have an 09 Denali. I have been playing with the tune. I can tell you that with my L92 VVT motor (cam advance and retard) at cruise, the cam is retarded. I get right at 19mpg highway which is pretty good for a 5600+lb box that is AWD and has over 400hp. Of course I am on eco modder looking for more.
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