NHRA 2020 Rule Amendment SS Intakes???

[SSDiv6]

Originally Posted by Joey Bohannon

Bert knows exactly what he is talking about! If they cc without the spacer plate there is a ton to gain. And if there wasn't gains to be had in port volume, then why do they make'm. Air speed can still be retained with more volume.

It is measured without the spacer and not all engines use a spacer. There is a lot more to to volume to make power with cylinder heads.