Does anyone have a picture of the proper routing of the speedometer cable under the engine?

Don't know what's proper. But I put it thru the hole in the bar with the provided rubber sleeve. EDIT : Too tired from floor pan blasting yesterday. Follow Brock's info. I too use a cable clamp to take up slack. Time for coffee #2.

You don't really want anything hanging down if you can get away with it.
Matt @914Rubber had his right e-brake cable ripped off/out on one of his excursions.

Isn't the hole in the engine bar for the clutch cable? That's the only cable I have with a rubber sleeve in that location. I routed the speedo cable over the top of the bar and zip-tied it to the clutch cable about mid-way between the engine bar and speedometer angle drive to keep it up as high as possible. Don't know what the factory did.

I have found that if you route it over the axle and use a loop clamp to attach the cable to the 12 o'clock position stud on the trans that it takes up the slack and keeps it away from the heat exchangers.

@adolimpio

Yes and yes.
Too tired from floorpan blasting yesterday.

Try this :

Click to view attachment

What is shown in the picture is the direction I was headed. You really need the tie wraps to make it neat and I assumed that they were not used originally so I thought there must be a different route.

Thanks to all for your help!