If I were in your position I'd give either Brendspeed a call as I'm sure that they've tuned a few engines over the years w\ these cams installed, or call AM to get w\ whomever they're using to write tunes (last I heard it was Brendspeed) that uses these camshafts (this #279995 cam spec Howard Cams grinds for American Muscle) or send Lito an email along w\ your engine mod list for consultation as I'm also sure that Lito has tuned a few of these as well.
These are 2 tuners that I know still tune 3V's & most likely have experience tuning them.