I'm building my B18C ITR motor, and I was thinking about knocking off the burrs on the exhaust side of the head, and then polishing the ports. I'm not planning on beating the stock flow characteristics from Honda, but it could help to prevent carbon build up. I'm not planning on changing the porting, just a light sand to knock off the casting ridges and a polish to smooth it all out.

What do you guys think is it even worth it?

 

go ahead and why not do it with your intake ports too