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Why do you want to advance the cam? By Gerry Proctor - 04/21/2006 2:10:00 PM; IP 137.242.1.15 There is only one reason to alter cam timing on an unfired engine...to bring the specs in line with the cam card. If you want to advance a cam on an unfired engine because of something you read somewhere, you're taking advice from the wrong place or you bought the wrong cam. There's no ill effect on the engine. Advancing the cam will close the intake valve earlier which tends to increase lower rpm power to the detriment to higher rpm power. You would only need to know this is what you want once you run the engine and drive the car to reach that conclusion. Intalling the cam straight up may give you exactly what you're want. You never know. 800 cfm is fine for a 460.

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Skip Navigation Links.  Big block timing questions -- JR, 04/21/2006 Why do you want to advance the cam? -- Gerry Proctor, 04/21/2006  RE: Big block timing questions -- JR, 04/22/2006

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