Steve,
The throttle cable part # 2230 995 (complete)or 1930 295(knob w/ wire)is the same as a choke or vent cable,except for the letter T on the knob.There is a circular dimple in your firewall that you drill out for the cable and caseing to fit through.This hole is directly behind the top of the top of the linkage that goes through the firewall,in line with where the carb throttle rod hooks on. There is no bracket just the cable and brass end/setscrew.