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Setting timing by vacuum ?

Forum: C3 Engines, Driveline and Handling

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Setting timing by vacuum ?

Posted: 7/27/07 5:09pmMessage 1 of 3
c
Former Member
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Edgewood, KY - USA
Joined: 10/26/2003
Posts: 339
Vette(s): 1981, Black/Black, Engine bumped to about 400HP.Ext/int mostly stock.
Hi guy,
Months ago, Ben (cthulu?) posted a great description of how to set initial ignition timing by adjusting to maximum intake vacuum.  I cannot find it in a search of this site.  Can anyone point me to the thread -OR- answer this question for me: do you set idle timing using this technique with or without the vacuum advance connected?  I know you disconnect the vacuum adv. for normal setting of initial timing (using a light and just setting to a pre-defined number of degrees), but I thought the vacuum technique might be different...
Thanks!
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Setting timing by vacuum ?

Posted: 7/27/07 8:10pmMessage 2 of 3
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Duncanville, TX - USA
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Setting timing by vacuum ?

Posted: 7/28/07 11:16amMessage 3 of 3
c
Former Member
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Edgewood, KY - USA
Joined: 10/26/2003
Posts: 339
Vette(s): 1981, Black/Black, Engine bumped to about 400HP.Ext/int mostly stock.
Thanks Adam!
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