If I wanted to pull off a set up like really nice classic car set ups, engine wise, with the super clean engine bays, how would I go about that? You know, the cars look like it's motor and like 2 wires, lol. What does it take to do something like that?

 

it takes a whole lotta patience and a good wireing schematic.....follow that and get ride of what you dont need

 

You really can't do that if you live in Cali, but if you're in Florida or Montana, then just plan on lengthening every wire so you can route them all in the least-visible ways. Likewise with vacuum hoses.