Hey CW -
New question. I see you've run your heater hoses from the manifold to the core and then back to the radiator. I assume you've done this because the later reverse-rotation water pump has no outlet for the heater.
I've got that problem, so what radiator application did you use? You've got it covered up well, but it looks like it may be a 4-core? None of the one's I've ordered so far have the heater outlets.
Thanks....SSOW