Retro fitting rev counter to pinto

[jemski]

I have a 1978 mk2 camper with no rev counter. I want to retro fit one but don't know if it needs to be a cable one or electrical one.

Does anyone have any info?

[DodgeRover]

Electrical, it's usually triggered by one of the wires to the coil.

[mr Grimly]

Eletrical ones, Cortina mk3/4/5 the same just need to swap wires around on the back. Make sure they from a 4 cyl not V6