[Elarson]

'75 Formula with rally gages. Original wiring was hacked up to run an add-on tach and I want to put it back to stock. I bought a reproduction tach harness and the plug into the gage cluster was obvious. But I have 2 other plugs (see picture attached). What goes where? I can't find it in the service manual.

Eric

[Held for Ransom]

Look in Section 15.
The Pink w/Black tracer should go in the fuse block, center row, second from the bottom (I believe). I don't have a '75 Service Manual to help exactly.

Would the Orange plug into the HEI and the other side screw into the inline fuse?

[Elarson]

I took another look at the harness. It makes sense that the plug on the red/black wire would mate to the fuse panel. The brown plug on the orange wire definitely looks like it clips onto the HEI cap. I'm not using HEI so I'll cut that off and terminate it differently. The odd part about that is that the short orange wire splices onto the longer white wire. No clue why they would do the color change.

Thanks for your help....it all makes sense now

Eric