Where is the Best place to attach the wire to tach

78elk

Dragway Regular
Mar 6, 2014
1,262
79
48
Mountain Home Id
I have a 78 El Camino that I'm wiring in a Rostra cruise control. Where is the proper place to wire the Rostra cruise to the tach? I don't want to mess up the tach or the cruise control.
 

Vilanus

Daily Driver
Jun 2, 2019
22
1
3
Canada
White wire going to your distributor. (Or the one that isnt pink) thats your tach signal. If you dont have the tach option it would be the unused pin. Assuming you have an HEI
 
Last edited:

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