Is More Flow Better, Is The Smallest Intake Port That Flows The Most The Best

And the Cummins could power the Duster. However the Cummins has a narrow torque curve and you would waste more time changing gears. If the Duster had an electric engine with a linear torque curve with no gears, it would go faster than both!
very narrow,. 1700 to 2100 stock,..turn mine 2300 but its set up hot!