Got my FM4 Cam today

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05-04-2004, 08:51 PM

2000SLVR_Z28

Launching!

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Got my FM4 Cam today

But what is the purpose of +4 grounded into the cam

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05-04-2004, 09:12 PM

Jimmyz

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In case you install it straight up (dot to dot) and do not have a degree wheel. The cam has 4+ degrees of timing advance built into it. (I think)

Last edited by Jimmyz; 05-04-2004 at 09:26 PM.

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05-04-2004, 09:23 PM

Candy

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I will have Allan give you a more detailed explanation but basically you have the advance ground into the cam to get the proper intake centerline that you need to make good power and throttle response.

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