[68l30]

Sounds like a 960 to me.No transmitter neded,this is a "solid state tach".Use one of the two posts with out the insulators for a neg,use the post on the left for coil,and the post on the right for 12v.There should be a seperate light hook up as well...I've yet to find one that was very accurate,a very lazy needle as well........

Steve