cleaning up the slant six head

So to add fuel to the fire, since the heads flow was clearly designed for the small cube 170ci and not the 225. Would it be more profitable, if building a NA slant, to build a 170ci instead of the big 225?

I realize the 225 to have a torque advantage, but I imagine the peak hp levels would be similar.

Either way, I'm in the process of assembling a Hyper Pack 170ci for my '64 Dart. The dart is going to be a fairly period correct gasser but with a 170ci slant and a 4spd. Not going for fastest car, but Im hoping it runs in the 14s.

What do you think?!