Where does the positive battery end go to on my 1985 corvette?

[mitsudriver34]

I recently dropped a newer 1985 l98 motor in my 85 4 sp.manual corvette. all accessories are attached and my starter is on the flywheel. I have a few sensor plugs undone that, i cant find the sensor for. I did mark them though. There is a large BLACK cable that is positive and cant find where it goes. stater solenoid? alternator? dont know. also if you could help with a diagram of where all those damn vaccum lines route to(egr and air system)