That head is already CNC ported.
Probably wouldn't take much at all to get those into race ready condition.

I've never had a set of those in my shop. I wonder who they had do the CNC work.

What's that part number and date on the box?


When you get a chance, see if you can get a close up chamber shot......like this:

image.jpg
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads