[Steeveedee]

Transmission Controlled Spark is a system that limits vacuum advance until the engine is warmed up and the transmission is in high gear. It appears to have been already bypassed, so you could just take the wires, hoses and solenoids off and throw them away. They were designed to limit hydrocarbons and oxides of nitrogen emissions back in the early '70s SMOG days. The system also provided for faster warm-up of the engine for better fuel economy.

The solenoid at the top of picture #2 is not part of the TCS. It is used to hold the throttle open when the engine is running, and allows the throttle to completely close when the engine is turned off, to avoid dieseling.