Possible kick down solution!

^ All good advice above. In the first pic above - you are still missing the factory spring between the carb stud pin and the pivot "shackle". - the right of your red/orange markup highlight. Don't buy aftermarket - the factory stuff works well when set up correctly. Your transmission will absolutely be damaged by lack of hydraulic pressure line pressure. Appears you have a factory cast intake. There was good advice in the other thread as well.