Yup - based on the new info from Mauri, I think you can easily intercool enough to max out the pump and not worry about EGT's... probably get 150-160hp before the pump runs out of fuel to deliver. That should make for one peppy W123, especially since they have 3.07 axles...!
And yes, some kind of before/after data would be MUCH appreciated, even if it's just via stopwatch to 80mph or something, noting temperatures, etc...