7afe intake porting question, About tumble effects inside plenum Options

[Livewire]

Can I grind out the ridges on the plenum cover while I’m doing a polish or does the engine run better with the tumble effect? Not going to really touch anything near the injectors, I don’t want to mess anything up and the fuel keeps it pretty clean, but the plenum gets really dirty and I wanted to know if anyone has had any negatives from putting a nice mirror finish in there to help with buildup. I know I won’t expect much in hp gains, but I’m killing time until my rebuild kit gets here and I figured this would help with mpg if anything and let me take further advantage of the drop in filter until I can get the long ram intake through the driver side brights.