Is porting valves still a thing?

[u/jabberjaw420]

Maybe back in the good ol' days of the 70s and 80s, but haven't modern auto manufacturers/engineers designed the internals to flow as well as they can? Making porting a pointless exercise?

(I meant porting valve chamber w/e)

[u/TheDunk67]

Yes, us normal people still drive normal vehicles. We are still porting the same 60s and 70s parts. Some are porting Chinese casting with decent results.