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Old 01-08-2013, 12:54 PM
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put the fuel mixture to a ratio of 13:1 through the entire RPM band set at wide open throttle under a simulated load that is equal to your truck.
start with the timing at a total advance of 34 degrees set at 3,000 RPM or where ever your system peaks.This is with the vacuum advance disabled.(re establish vacuum advance system after tuning)plug gap ,use .035
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