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Old 08-26-2017, 05:02 PM
Astrowing Astrowing is offline
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I'm running the original Autolite 4100 carb. Venting could very well be different. In the US, the vapor pressure of gasoline is limited to either 7.8 or 9 psi depending on location and month. They allow an additional 1 psi for 10 percent ethanol. E85 ethanol can go up to 15 psi total so I'm not surprised 27% alcohol has a substantial vapor pressure and hence rapid evaporation.
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