08-08-2010, 03:02 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Rune,
Any further with your problem?
A dual diaphragm advance can may allow you to retard the timing as the engine is decelerating towards idle, almost "forcing" the engine to idle.
As the engine is say 20-50 rpm above the normal idle speed manifold vacuum would have dropped off enough, and the advance could then be coming back at the same time.
Hope this makes sense.
I have done this with a MSD 6AL-2 6530.
__________________
Gary
Gold Certified Holden Technician
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