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Re: How to connect a tach to HEI distributor?
Looking in the Haynes 1967-85 workshop manual. They show the white wire going to:
81-85 years
6 cyl - A.I.R diverter module
8 cyl - speed switch relay
The 77 up years don't have a white wire but instead a brown and that wire is shown to go to the tach clusters
I would disconnect the existing white wire and connect your tach lead there!
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1984 CC Dually - 454 - TH400 - Western Hauler Edition
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