[Gmecm] What is the "Idle Spark Multiplier"s function?

[Andrew Gibson]

I tlooks as though the table is designed to alter the spark for engine load at idle (eg: a/c on, trans in drive, letting the clutch out w/o throttle, etc) And it makes sense that the timing would retard with load. That is always done to reduce detonation and destruction.
 				
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