Hey everybody i'm new here, have read a lot of stuff but I couldn't what I needed through here or google. Long story short I bought someone else's problems, the car came with a turbo 400 and a mild build on a Chevy 350. I was wondering what the things in this picture called? I have tried finding them but I don't know whats z and what's not. The p/o said he has it running and I can get it to turn over by jumping the starter solenoid so i think it might be wiring but I haven't gotten far enough to dig into wiring mostly because I don't know what's what. Thank you for all your help. p.s. what is the second set of heater hoses for? drivers side is hooked up.
In photo1 what are these boxes and what do they do?
In photo 2 and 3 are these wires for the z or needed?
Photo 4 is just a pic of the hoses I am asking about
Thank you for any help you can give.