05-09-2012, 01:19 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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Not Ranked
The engine is "idling" at 1150 rpm and yet pulls 15-16 inches of vacuum.
I would be slowing the engine down to 800-850, the vacuum will drop to 8-12, then check the base timing.
You should have around 18-20 at idle, vacuum hose disconnected and plugged, 35 at 3000rpm.
__________________
Gary
Gold Certified Holden Technician
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