Attention: TDR Forum Junkies 
When my truck is cold the RPMs drop harshly when I push in the clutch or let off of the throttle with no load. It is dropping below idle and jumping back up to idle. I have raised the idle up (within reason), with no change. It will do it less with the idle jacked up (too high). Once warmed up it is back to normal. Could it have something to do with the KSB? 
