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  #31 (permalink)  
Old 04-28-2010, 09:28 PM
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Have you put a timing light on it to see what the initial timing is with the vacuum advanced disconnected. You need to know where you are to start with before looking at advance issues.
You should be at about 12btdc to start with
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  #32 (permalink)  
Old 04-28-2010, 10:06 PM
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Being as it was 8 years ago I hope he got it fixed by now.
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  #33 (permalink)  
Old 04-29-2010, 08:37 AM
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This thread opens up the age old argument of ported vs. manifold vacuum debate.
I believe this piece is written by a GM engineer.
http://rockridgefarm.com/vettdoc/Timing_101.pdf

Beagle
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Old 04-29-2010, 12:20 PM
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LMAO!!!! wow didnt notice how old it was. hahahaha
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