Ported Edelbrock versus W2 out of the box !

PRH said

That certainly doesn’t seem to be the direction things are going.

If that was really the hot ticket for everything ...... I wonder why they’d start out with chambers as small as:

View attachment 1715269429

Vizard has some interesting results in his SBC porting book relating to this.
Even though the “open” chamber SBC heads(that have the same port configuration) flow more than the equivalent “closed” chamber head, and even after equalizing the chamber volume so the CR remains the same for the test, the closed chamber heads made more power.

Click to expand...

Flow more, I said. Wins in the flow race.
Closed and even closed with quench adds to power on top of that.
This is a small mopar forum, so to not debate to infinity and beyond.. that's not the law for every head under the sun...Some flow great with not much or any chamber. Port design and height, and of course... 'overall shape' can be the exception to the rule, but we're just going to talk small block Chrysler for the moment.
I'm not saying open makes more power in every case...I am saying you'll typically see less shrouding and better flow numbers with mopar stuff..and I'll even add that if you pick other parts to do the same job as a closed quench chamber...you'll probably come out on top ...or run the same.