Riddle me this? Parts ?????

[C10Silverado79]

A couple more 'what is this?' questions.

What is the canister with the vacuum line that is above the manifold. It had a hard line out the back that runs down toward the transmission. The vacuum line connects to the vacuum tree on top of the thermostat.


There is a cable attached to the bottom of the throttle linkage that also looks like it runs down toward the transmission. I have a 3 speed trans but I don't know what model. There is also a vacuum line off the manifold port and looks like it connects to the rear of the transmission. I thought this was the 'kick down' line but now I'm not sure.


I also noticed that when I have the gas pedal to the floor, the throttle is not completely open. Is there any way to adjust this?


TIA