Thread: Quick Fuel Secondary air adjustment
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Old 04-10-2020, 07:22 AM
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Location: North of London, UK
Cobra Make, Engine: AC Cars Limited, 302 EFI
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Hi Gary. I’m fairly sure I have the HR 780 QFT. Sorry don’t know size of the idle feeds. Sorry but can I get you to explain, how a 3.5 PV opens later than a 6.5, on an engine where the vacuum rises as the rpm increases? I thought the number relates to the vac that the PV opens and let’s fuel in.
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