Idle Speed/Throttle Actuator - Mechanical: Locations

Fig. 24 Throttle Positioner System:

Thermal Vacuum Switching Valve (TVSV): Front, RH side of intake manifold
Throttle Positioner: RH side of engine, near the carburetor
Vacuum Switching Valve (VSV): Front, RH side of engine
Vacuum Transmitting Valve (VTV): In vacuum hose between the TP and the carburetor