What are these Connectors called??

Thanatos340 said
When I got this car, The wiring was the worst I have ever seen. Step one was to rip out every wire in it. I did leave the Harness for the Headlights and turn signals in tact as well as the Harness to the rear of the car as those had not been butchered. (First Picture is car as it was when I got it)

I then built a custom panel and harness to be mounted Inside the firewall in the Passengers side. This panel contains the Fusebox, Ignition Box and MSD Solid State Relay to be used for the Nitrous system. (Second Pic)

Now I am terminating the custom Harness to plug right into factory harnesses that I left intact (Steering Column (Yes I replaced the one in the first picture), New Firewall Connector, Connector to Rear Lights and Connector to Brake Lights.)

Sound liike a good plan.
I think with EFI a change in the original wiring strategy is the best approach.
With the key in the column, it seems have become a trouble spot. They started splitting the power going to and from the key switch to reduce the load on the wires and connectors. I'm sure you have it figured by now.
Headlight circuits in the A-bodies were underwired most years. I think its because the headlights originally used drew less power. Around 73 or 74 they changed the headlights to the newer, higher draw bulbs but didn't change the wiring. Just 18 awg from the hi/low switch to the lamps. :( If you haven't yet, relays really help on these cars.