For all the people who currently own a set of these Small Port Commandos or the aluminum
Magnums...........there seems to be a problem with making these thing flow any air.

Look at this picture. Apparently the thought was to run these exclusively with a hydraulic roller
cam as the pushrod holes are .205" further from the manifold surface than my nasty old OEM heads,
which incidentally, outflow these paper weights by 28 CFM.

By them being machined as such, places them deeper in the port. Which makes the transition
into the curved wall much more abrupt, upsetting the airflow in a bad way.

Without relocating the pushrod, I don't see them being a candidate for a serious race application.

Flow is 251.3 @ 500" right now.