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					Originally Posted by Tommy  If your engine runs well without the MSD box, I suggest you leave it alone.  I've run MSD boxes and they fail more often than I'd like.  I don't have one now. | 
	
 For whatever it's worth, guys I know that run
MSD digital 6AL boxes who experienced failure 
connected a MSD 8830 Noise Filter Capacitor
into the 12V BEFORE going into the CDI box.
8830 cleans up the power and provides spike
protection.  None have failed since.
Link:
https://www.summitracing.com/parts/m...yABEgJWifD_BwE