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65 GTO Vac Adv configuration
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09-25-2021, 04:55 AM
Geoff
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Join Date: Jul 2005
Location: Australia
Posts: 2,471
According to my Motors Manual, the vac adv on 64 to 66 389 engines added 20*.
So with 6* initial, these cars were driven off showroom floors idling at 26*.
Suddenly, 30* doesn't sound excessive for a modified engine does it??
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