Stage 5 Hemi conversion heads

I found some for sale waaaaaay out in the middle of nowhere. I'd be curious how well they stack up against some trick flows on a 470, all other things being equal. If I had the money, I'd pull the trigger on them, just to be a little different.

426 Hemi, Dodge, Stage V conversion , Hansen
I have heard the quality of the stage 5 heads are very good and flow big right out of the box. No junk.