As an example Dan Smiths 410 stroker 360 with stock ported heads runs 9.6s at 3050 lbs. He does that with just 28 degrees of total timing. The exceptional performance and the fact he does it with only 28 degrees of total timing is the give away. The burn is very fast and efficient. Slow burns don't make power.
If you want to make more power and increase the HP to CI ratio fix the burn......But to do that you need to understand what the burn is and how its place and that takes smarts.
You wont learn that from reading magazines and watching Youtube dyno clips.