yeah, we (I) kind of screwed it up. I like the mods myself. I did it to a street n strip engine, it helped cooling , helped filling w/o air being trapped, made the plug color more uniform. I did tie the tapped in lines from the rear of the intake water passages to the spacer I built to go under the thermostat. I was running a stock type alum water pump tho, and drilled and tapped the holes between the center cylinders.
