New tach. Which wire?

[1sik78]

Hello I got a 78 c10 with inline 6 (250) and I got a tach but I do not know what wire is the one I hook up the green wire to (from tach). I got two black (dark color) and one peach color wire of the distributor. Any help will be appreciated thanks.

 

[Jims86]

Hello I got a 78 c10 with inline 6 (250) and I got a tach but I do not know what wire is the one I hook up the green wire to (from tach). I got two black (dark color) and one peach color wire of the distributor. Any help will be appreciated thanks.

Just run it to the negative side of the coil, Which should be clearly marked on the coil cover.

 

[RetroC10Sport]

A 78 should have an HEI so it should be marked on the cap.

 

[1sik78]

Just run it to the negative side of the coil, Which should be clearly marked on the coil cover.

Thank you will check it out

 

[1sik78]

A 78 should have an HEI so it should be marked on the cap.

Thanks a lot

 

[1sik78]

Ok so it worked perfect it was marked "Tac" now I got a tach thanks

 

[RetroC10Sport]