CNC Mill Mark Removal in Intake Port

I appreciate your efforts. A wet flow runner needs help keeping or returning raw fuel to an atomized state. The worse the runner, the more help you need to avoid having raw fuel run down into the port. Total CFM flow being effected by surface finish would be incredibly small if any. Quality of the mixture far outweighs any loss in flow there might be. I run a “bad” intake, you can see where I’m just slamming raw fuel onto the plenum floor. I need to remix that fuel. Very unscientific, but I take the fact that the fuel staining peeters out before getting an inch out of the plenum as a sign my rough plenum floor is helping.