Only @ stage3 so none of this is necessary! “But knowledge is good”

whilst cleaning & tidying up the outside of the inlet manifold/plenum got me thinking! Is there any benefit in polishing and deburring the internals, I don’t mean porting it out as I presume that’s matched to head ports etc I just mean improving air flow because as standard they are quite a rough casting.

I remember reading something ages ago about turbulence being good for even distribution of air! is that correct ?

My apologies as this sort of thing has probably been answered a thousand times but I can’t seem to find a definitive answer, and what information I have found needs translating into a language my simple brain can understand