If you can't find a suitable original Pontiac kickdown cable bracket & throttle lever, you'll just have to rig up your own, or run without the kickdown cable.

https://www.google.com/search?q=how...tart=0&sa=N&biw=1536&bih=791

I've read several online debates about whether you can run without the cable hooked up, or not. Many say they have done it for years, without any problem. Some say the trans won't shift right & may damage it. Lots of rebuilt TH350's are sold without a cable.

https://www.google.com/search?q=can...316j0j9&sourceid=chrome&ie=UTF-8