I wanted the flow to be pretty close between the two heads, and you’re not going to end up close to 260 without doing that.
Had I started with two untouched heads, for this build I would have been shooting for mid-240’s.
I could have gotten there without doing much to the guide bosses.
Since they were whittled down pretty far on the one head, that kinda dictated the course of action on the other head.