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Old 10-14-2015, 04:59 PM
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DanEC DanEC is offline
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Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
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Quote:
Originally Posted by Khobra View Post
Thanks Patrick,

By advancing the time there is more time to burn the fuel. Hence, a cleaner, sweeter smell. Assuming that the condition was rich, would you not agree?
Much has been written and posted about throttle plates exposing too much transfer port thereby causing a rich idle. The solution has always been to close the throttle plates a bit to limit fuel flow from the transfer ports at idle.
By advancing the timing I was able to close the throttle plates at bit and achieving my desired idle speed of approx 950 RPM in neutral and also giving the fuel more time to burn.
That sounds like a reasonable, thought-out approach to me. I've probably never had a car with a carburetor that idled lean so I wouldn't know if burning eyes is a sign of that or not. If it worked, it worked.
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