Where do the vacuum lines go from a 350 throttle body engine to a 700 r 4 transmission?

In a 350 throttle body engine connected to a 700R4 transmission, vacuum lines typically run from the intake manifold to the transmission's vacuum modulator. This modulator uses engine vacuum to adjust the transmission's shift points based on load and throttle position. Additionally, there may be a line connecting to other components like the brake booster or emissions controls, depending on the specific engine setup. Proper routing and connection are essential for optimal transmission performance.