Open chamber Edelbrock head this time

Bodyperson said
I’ve brought this up before and did not get a response. I’m far from knowledgeable on the subject but I’m a big follower of your work.
So… it is my understanding that opening the pushrod pinch has little gains compared to the sum of all of your other port modifications. Ha, spell check just corrected “port” to ”poetry”. Not far off.
ANYWAY, I would like to see the results from maxing the ”pinch“ but, instead of matching the intake to the as cast port, I have to wonder what would happen if the area from the pinch to the port entrance was straightened with a matching intake manifold port, effectively straightening that part of the air intake instead of the hour glass shape that area creates.

It’s kind of hard to explain but I’ve done so many of these it’s kind of a back and forth for first time porters especially guys that have to calculate strain every area of the port by measuring. Just for the heck of it I checked airspeed at the bulge of the pushrod pinch and it was maxed out on my flowbench at 402FPS. But the short turn wasn’t maxed out because with the bulge the air struggled to even get to half of the short turn because of the bulge. Now that I tube the pushrod holes and two common wall head bolts I hit those areas first to open up the port to easier access to everything else