Quote:
Originally Posted by flatjack9
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?
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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.