My thought at the moment is use the dyno as is with the manual controls and fitting sizes it came with. Just bolt it on, hook up a garden hose and know I have about 150ftlbs of braking available. I also have a thought that involve making sure there is a second set of hands and eyes on site because I can't watch everything at once....so there should be nothing to sort other than the physical connections. I might add the pressure transducer.....but I'll probably hold that until I upgrade the water system as I don't need the data for anything I can think of.
Once the engine is happy and I have the low power stuff all tuned I'll upgrade the water system to start doing higher power stuff and should know at that point what kind of noise problem I have to deal with if I want to proceed. The other option would be engine back in the car and do high power somewhere else.
I'm not opposed to starting with another ECU....I could even load the AEM firmware into mine, it is AEM hardware nd I did register it so i have access. I followed their pin-out for the most part so it should be straight forward with no need to even change any wires....I'd need to double check 12 cyl compatibility, that is really where most ECUs fall short. Then the issue of there is no known tune for this engine...that's probably the harder part and I'm not sure if trying something else would put me ahead or behind....don't know.
I do know I got a couple dial indicators fixed this morning so I should be in the shop making a cylinder