No room for new throttle shaft bushing

The Quadrajet's base is quite a bit thicker than the Thermoquad. That video or one similar was where I got the idea. So the Quadrajet can use the premade thicker bushings. That is why I found the thinwall tubing cut to length for the TQ. I had a hard time finding the correct reamer, But found one place that had what I needed. If anyone is interested I will post the tubing brand and the reamer brand and part number. They are out in the garage, so I will look tomorrow.