I think it will be a good in between head. Possibly an upgrade for someone who already has good rockers, intake and headers for the standard SBM layout but wants a little more giddy up.
I have ported eddies currently that flow
280@.600, granted there should be some more on the table with these, but instead of sending them back for more porting, these new heads might be a better bargain. All depends on where the price point ends up.
We all know what a CNC'd Indy top end costs. If they can price them significantly less than that I think they will sell well.