Nice street beast cam IMO A similar cam was used with a set of Victors where Miller ported them. I forget the displacement, but it was around 370. The Victors allowed impressively good power with a small cam like that. It was an engine masters entry IIRC.
If this all works now, changing the camshaft will effect it a lot. You know the drill.
IDK if a TF head has what it takes. As in how far it can be ported.
Good, not great. A lot depends ultimately on the total HP made.