Dana67Dart said

BTW...
Very insightful, thank you for taking time to do this.
There are many parts to the entire system.

1. The lever on the transmission.
2. The bell crank on the transmission
3. The belcrank on the engine
4. The lever on the carb
5. The kick down rods from / to the levers and bell cranks
6. The slotted kickdown rod
7. The rear engine throttle cable and bell crank mount
8. The throttle return spring forward mount.
9. The throttle return spring
10. The kick down lever spring.

2bbl and 4bbl parts are not the same.

Some of the rods interchange and I think the transmission bellcrank.

The numbers on this diagram are not related to the numbers in my list. And the linkage shown is 2bbl.
View attachment 1715985666

I don't know who makes your manifold but I think it is referred to as "AirGap" and by the bosses in each runner relitivly new manufacturer.

Click to expand...