Namor vs Firelord (With a Twist)

If these two were to use only their strength (kicking and punching only. No heat blasts). Which one would be able to tear through 20 walls of 6 inch steel faster, and reach the finish line 30 meters from the last wall that was demolished?

What about Namors ability to scream "Imperius Rex" which I am convinced boost his powers to some unknown level?

Namor.Greater physical strength IMO.