Need help on correct linkage.. who makes it

Look for something like this that fit's a demon carb. I don't know if there is such a animal. That demon throttle plate looks pretty wonky. A stock 4 barrel bracket should work fine for the cable to attach to. Start a wanted thread for that. No one repops those as far as I know. Also, I am not a fan of those air cleaners. One backfire and you send melted plastic down your carb.

kickdown adapter2.jpg

The cable isn't hooked up to the carb but you can see the bracket.
engine 269.jpg