SammyP
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I have Carbs that have 340 mains in them and I have stock carb but I don't know which to use for my motor. My engine is bored .06 over and has vforce 3 reeds with a boost bootle. I don't have an exhaust yet so I am looking to see which carb to use and depending on that what exhaust to get.
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What mixture or octane is carb with a 340 main?
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id say at least 140 octane at 200:1 pre mix with used motor oil is what ive found to be most beneficial
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You really serious about this question??? LOL WOW
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Serious answer: The main jet size determines fuel flow of whatever octane at whatever mixture you use. It affects neither. If you mean air fuel ratio, that's an impossible calculation without knowing every specific detail about your setup and atmospheric conditions. Even then, it'd likely still be only within a few points.
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