Question on port matching

Rat Bastid said

Here is one video. It’s a PITA to do this on my phone so I hope it works.



I’ll post a couple more when I get home.

Click to expand...

Pretty interesting. I would imagine that turbulent flow in a intake or head runner would benefit the fuel and air mixing. I though I heard or read that the intake side should be a bit rough and the exhaust side be smoother. (to aid in laminar flow)