It depends on how well the idle quality is tuned.
A good idle will only fluctuate the Idle Spark control about +/− 2°-3°.
A poor idle can fluctuate the Idle Spark control as much as +/− 8°-9°.
http://forums.holley.com/showthread....e-Tuning-Notes (Read "Idle Spark Control Tuning".)
A good idle will only fluctuate the Idle Spark control about +/− 2°-3°.
A poor idle can fluctuate the Idle Spark control as much as +/− 8°-9°.
http://forums.holley.com/showthread....e-Tuning-Notes (Read "Idle Spark Control Tuning".)
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