Small terminal block you are referring to is to avoid splices or sticking 2 wires in one connector. The 2 wires on left loop down to the NSS on shifter & back. If it ever failed, I move 1 wire & I can start the car. The green wire on right w/ white stripe is relay ground for fan relay. I have a manual switch on dash which switches the relay ground, the other wire goes to the temp probe in intake. That way- if the sender doesn't work, I can manually over ride.

If you look above the maxi-fuse, there's another terminal block there. That's for headlight low & high & front running lights. The kit is designed to run to one headlight & from there to the other side of car. My headlight conduits are 3/8 stainless, there's not enough room for that many wires & splices under the hood weren't an option. So- I ran from HL switch to the terminal & then to each side of car separately.