Posted this in the Vintage section as well, but no responses.. Maybe someone here has some insight.

Anyone know or have experience running a newer 550 stator with an older early model (the larger one) 440 ebox? Seems like I remember running this combo successfully years ago but can't find my notes on it and my memory ain't as good as it used to be..

Main reason I'm questioning is because the exciter and pulse coils have different "good" ranges for the early year 440's according to Clymer's.