Thanks everyone for the help... 1 place got back to me that said they "think" they can cut the end off my cable and add the correct end but it would shorten the cable 4".

Pittsburg - I appreciate you digging out your tach and cable.... Any chance you could post a picture of the end that screws into the tach?

I would like to see exactly what it looks like , maybe I can make something like Craig and Steve mentioned.