Engine Bay Wiring Identification

[CJM72]

I'm wiring up my LS Swap in my 72 Blazer and trying to make sense of a lot of loose wiring and connections that were left by the PO. Been studying the wiring diagrams, but I can't seem to match some of these up. Looking to the board for help identifying these!

First up is a group of wires coming out of a firewall grommet on the driver's side just above and to the right of the junction block. I have a large pink wire and a blue/white, brown/white, and black wire coming out.

The large pink wire goes to this plastic connector.

The Blue and Brown wire go to this connector. Another Green wire is also in the connector and I think this might have gone to a temp sensor or something like that.


Next up is a pair of yellow wires and a green wire that come across the gutter from the driver's side over to the passenger. One yellow was hooked p to the HEI that was in it. The other yellow and green wires were just cut.