Correct Heater House Routing - Vortec 350

[Portland68]

Having trouble determining the right solution for cooling my motor and want to check I have it right before I start driving the truck. It is a 72 k1500 with a Vortec 350 in it.

How/where exactly are my heater hoses supposed to be routed and do I need a bypass?

Currently the top of the water pump and front of the intake manifold are plugged and I have a hose going off the passenger side of the water pump to the heater core and a hose going from the heater core to the radiator.

Through some looking into things on this site it seems I may need to run a bypass from the top of the water pump to the front of the intake manifold but i also saw mention of running a line to the block on the passenger side.

Any help would be appreciated, I am running a Stant 45358 thermostat.