First, you will need to get a TPI transmission adapter. This adapter will allow you to bolt the 350 turbo transmission to the TPI engine. You will also need to get a TPI transmission crossmember. This crossmember will support the transmission and keep it from moving around.
Next, you will need to modify the transmission's torque converter. The torque converter is a fluid coupling that connects the engine to the transmission. You will need to modify the torque converter to match the stall speed of the TPI engine. The stall speed is the RPM at which the torque converter stops multiplying torque.
Finally, you will need to get a TPI transmission control module (TCM). The TCM is a computer that controls the transmission's shifting. You will need to get a TPI TCM that is compatible with your engine and transmission.
Once you have completed all of these steps, you will be able to use a 350 turbo transmission with a TPI engine.