318 head porting for the average joe

The exhaust was always over-looked 'back in the day' by most engine manufacturers!

But mother Mopar 'got lucky' with their small-block heads lol...
(Even the mighty 426 hemi was a massive compromise due to engine bay restrictions).

So any gas-flow must be better in a smooth port than a lumpy one?
The gas exhausts faster than the speed of sound for a few milliseconds.

The exhaust 'port roof' must be the most influential part of any head?
Don't get me started on Big Block heads lol...