SB vs BB who wins?

Mean416 said
+100 HP? That's a lot. If that's all coming from Headflow then the heads would really have to be a whole lot better. I mean, we're talking better than 50 cfm right?

With typical ootb type heads getting what 450-575 to almost 600 hp out of a 408, 525-700+ hp out of bbm mopars. Stealth flow like 273 @ .600" thats there bottom of the line head tf 240 326 @ .600", tf 270 343 @ .600" etc.. vs basically sbm tf 305 @ .600".

So say the average decent 408 is making 525 hp there's no reason a big block shouldn't be doing 625 hp. Above that it's race to max effort, course there's parts to make 700-800+ sbm too, what ever you can do to a NA 408 it should at least be easier to get there with a bbm if not out right Beat it.

What's the top max effort heads for a LA 4.03" bore vs B 4.37" bore ?