Torqueflight transmissions require a physical connection for the ‘throttle pressure governor’, aka the kick-down linkage.
Do Not operate a TF trans without the linkage as this will damage the transmission.
All TF transmission swaps, to either a V-8 or the Flathead 6/8 will require fabrication of this linkage. The linkage found on a later V-8 can be modified for use on an early V-8 swap and the linkage from a Slant-6 can be modified for use on a Flathead 6/8 engine.