
10-20-2011, 03:32 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 holes are only meant for early engines without electronic throttle control.
Larger cam etc makes life difficult for a limited IAC valve and programming.
Later electronic throttle bodies don't have holes.
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Gary
Gold Certified Holden Technician
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