harness removal
 

How do I remove the harness? I want to keep my heat (blower motor) control. Also I would like to keep all things that's not needed for tpi setup. I sold my harness and may go lsx or fast ez efi management.
The grommet in the middle of the fire wall be hind the engine do that have to come out? The big bulk head under the booster, do I just unplug it or do I need to separate more wires.