06-17-2014, 12:54 PM
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CC Member
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Join Date: May 2009
Location: American Fork,
Ut
Cobra Make, Engine: 66 Cobra
Posts: 930
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Not Ranked
The Quick Fuels are a good carb and have a lot of adjustability, but they are sensitive to temperature. Meaning the AF ratio will change with the temp of the engine and the outside temp. You did not say what altitude you are at. It does not matter if you are .5 or 1.5 or turns out. Cubic inches and altitude have a lot to do with it. Set the idle AF mixture screws for highest vacuum. What you are reading about the screws being out about 1.5 turns is mostly for the guys that live at sea level. I live at 5,000 ft and mine are .5 turns out. If you have a wide band O2 sensor you need to get it hooked up. Without it you will not be able to tell if the idle transfer circuit, main metering or power valve delivery is correct. They are all adjustable on this carb.
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Wayne
"Everything is alive. If you get angry at a vehicle or the trans, it won't fix until you apologize and say you are sorry." "The vehicle always knows what it is doing and what the cause of it's bad feeling is. If you ask it humbly what the problem is, it will tell you. Then you and it will both be happy."
Gil Younger
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