While I had them out I did a quick gage of the L W and radius of each at the port opening so I could calculate the cross-section. This is a 460 Predator beside a 440-1 Indy cnc'd by Modern. At the opening the MW has a larger area! 3.36" versus 3.16" Obviously it doesn't tell the whole story.
Can you share the quick dimensions?
I had a pair of Indy 440-1 CNC 345 (Indy's CNC porting), and for comparison they were:
Intake_ Width Height Area
Opening 1.375 2.650 3.644
Exhaust Width Height Area
Opening 1.960 1.550 3.038
The area calcs don't account for the corner radius, just LxW
