This ha probably been discussed before, but I have searched high all over and haven't found the answer I'm looking for.

Motor is a '98 5.7 with a tpi base and the serpentine drive out of an '88 camaro with the matching water pump. I am at the point where I need to get the coolant lines ran for the heater core and am not quite sure which way to route them.

I have everything to set it up like the factory, but i am not going to run the hose to the throttle body since the car will only see mild to warm weather.

I have a port in the front of the tpi base and one on top of the water pump, so so how do I route everything?

 

The port in the water pump and the port on the radiator serve the same purpose. TPI cars don't use the one in the water pump.

You can run a line from the intake to the heater core and from the heater core to the water pump or radiator.

Or you can run a hose from the intake port to the diverter valve, and everything else like the diagram.

 

Great! Figured that's how it was supposed to go, but it's nice to have a second opinion.