[Jay S]

I watched the those videos a while back. A slightly different topic that reminds me of these videos was a discussion about dyno pulls that were made with heads that have poor low lift flow, and they edged out heads with good low flows at those low speeds. Was that a similar result do to the dyno cell loading and acceleration?

My experience with 2 heads that flow the same, but one has a smaller port volume (on the same engine). More often than not the smaller port volume head outperforms the bigger head cc. Especially true on ported heads.

I like what extra port volume usually brings to the table though. We run a fully ported Max Wedge port 445 cid mopar with pretty big ports. In a Pontiac it would be equivalent of close to 360 on the port volume. With the big converter we run, most of the port work we have done has seemed to indicate it wants more port volume yet. We seem to be able to compensate for the big port volume some with extra compression and a decent cam.