1970 Tach question

[moparmarks]

1970 Rallye tach. Which terminal is for power and which for coil? Don't have my FSM with me.
Thanks

 

[Nacho-RT74]

If you got the harness is pretty much self one way. Long stud power from Ign ( blue wire ) prong coil signal ( grey wire ) there is no other way to conect them. Harness gets these connectors specifically for those provisions on tach.

 

[Nacho-RT74]

Just in case.

 

[moparmarks]

Hey thanks buddy. Just what I needed. I thought that is how the terminals were but wanted to make sure. I don't have a factory tach harness and wasn't going to get one. I'm installing a MSD and will use their tach adapter and do my own wiring.