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Discussion Starter #1
planning a converstion from eec iii to hei. i realize the hei dizzy cap has a tach contact, but where is the tach wire connected under the hood? the eec iii has zero wires going to it......everything controlled by the computer. i have looked at the haynes wiring diagram for a 1982, but have yet to find the tach wire. thanks for any help.
 

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Discussion Starter #2
still hoping to id tach wire under hood on an 82 that has funky eec dist that is getting ready to bite the dust and go to hei.
 

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i did it on a 302 but it was a dura spark system to hei I took the wires from the dizzy a touched each one to 12 volts When the tach jumped i knew which wire was tach This might help
 

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well, there's a node on the dizzy that connects to a spade. someone on here had a diagram for which wire connects to the tach. if anything, just make one.
 

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I was gonna say on the connector for the Ford coil one side usually had tach embossed into it.
 
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