Thread: Ignition Retard
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Old 04-25-2010, 05:52 PM   #7
Tony Curcio
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Default Re: Ignition Retard

Before there were programmable boxes, the NASCAR engine builders would bend the tangs on the distributor reluctor for the cylinders they wanted to retard or advance, then check the results by putting a timimg light on each cylinder. I guess it was trial and error until they got the right amount of change.
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