The left or outside fitting coming from the firewall is the waterhose, and the right or inside fitting goes to the intake. On mine, the water pump hose is preformed to fit around the head and radiator hose and down to the water pump, and the other hose is just a longer length of hose to come around to the intake.
I'm looking to get an EFI style intake hose/fitting for the intake side, because they're metal and run from the intake straight up the top side of the intake/head and back to the firewall....they go under the intake on an EFI car....i think it would make for a cleaner look.