Motortrendz,
I just realized that I ahd not responded to your question, sorry about that.
The plumbing came up internally thorugh the overflow box, 6 outlets drilled through rear ewurobrace, 2 outlets through side eurobraces, 2 on front wall of overflow. All each controllable with ball valves. was being fed by 2 large dolphin pumps. It gave a great deal of flow. Once thing started to take off, I added (6) tunze 6200's to the tank for some added flow.