273 Carb Size

I was looking at this video from the How to and found it pretty enlightening. I'm not a physics major but I understand enough (at least I think) to see that this guy makes a lot of since.
He explains a carb size calculation and one of the numbers is the RPMs where your engine hits peak power. Does anyone know what a 1965 Dart 270 273 engine peak power RPM range is?
My best guestimate will dictate me running about a 350CFM 4 BBL carb.