Im just working out some cooling system issues on my 351W. My motor was assembled completely out of car so I have nothing to refer to for plumbing. On the water pump there are two ports. The bypass port I have figured out. The other port I assume would go to a heater core if I had one. My question is on the second port. Is this port on the suction side of the impeller or the pressure side? It is a victor series water pump from edelbrock.

Blaine