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Old 07-09-2019, 06:24 PM   #4
drolston
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Join Date: Jun 2014
Location: Williamsburg, VA
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Default Re: Running too Lean?

Quote:
Originally Posted by flatjack9 View Post
To answer your question, lean A/F ratio and retarded timing can cause overheating. If you choke the engine slightly, do you notice an increase in power?
Timing adjustment on the distributor is set at full advance, and I keep a little pressure on the vacuum brake. I will experiment with the choke at cruise speed to see if changes performance. But I am also really interested in what others are finding regarding spark plug color as an indicator of rich or lean.
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