She doesn't have a dentist yet Maynard!
Been tinkering in the shop some today. This has been the easiest farming day I've had in weeks!
Anyway, just about have the throttle finished. I used a 4 1/2" .045" thick slicing wheel to taper the handle. The taper looks so much better IMO. Then I tapped the top to 3/8" coarse thread to be able to use a MF1650 Hi/Lo shift handle. You can see the throttle arm stop I bolted to the dash side, so not to pull too hard against the injector pump throttle lever. I also added an adjustment to the throttle rod near the injector pump.
I wil be making a polished aluminum round cover to slip over the pivot bolt on the handle to dress it up later on. It will be the same size as the large washer the bolt is welded to. I will lathe a recess in the back of this cover cap to allow for the bolt head, then drill a hole from the edge of the aluminum cap all the way to the recess, then tap to use an allen set screw to secure cap to a dimple drilled into the side of the bolt head.
Here's the almost finished inside part. Just needs dressing up. The arm appears to hit the dash up there on top, but clears by over 1/8". I left it longer in case I needed a different ratio, but where it is is perfect, and any further out with the rod would make way too narrow an arc of the throttle handle.