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If you have the gauges made of unobtanium to test it, the spark energy should be in the 50kv rough range - the actual energy is a function of what's required to jump the gap, up to whatever the coil can generate. The old points and condenser systems made roughly 15kv in good shape, and if they deteriorated much, they fell below what was required to jump the gap.


I picked up this tool Test Tool from Waekon a few years back. Easy, fast way to test KVs to sparkplug. Last time I checked my Monty's wires I got from 10.6 to 15.7 KVs depending on wire.

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles