Here are the general steps involved in installing an electric fuel pump on a 1972 350 Chevy:
1. Disconnect the negative battery cable.
2. Remove the mechanical fuel pump.
3. Install the electric fuel pump mounting bracket.
4. Mount the electric fuel pump to the bracket.
5. Connect the fuel lines to the electric fuel pump.
6. Connect the electrical wiring to the electric fuel pump.
7. Reconnect the negative battery cable.
8. Test the electric fuel pump.
It is important to note that installing an electric fuel pump on a 1972 350 Chevy may require modifications to the fuel system and may impact the overall performance of the engine. It is recommended to consult a qualified mechanic or refer to the service manual for your specific vehicle model before proceeding with this modification.