Cast vs. Aluminum heads and bang for buck..

Depends on how you go about getting the quench what piston you decide to use how far sticks out of the deck if you decide just to Mill the flat /open side down and leave the small side past the eyebrows alone Mill the head Etc. I had a small chamber too, 4cc small. Lol is a pain.
Opening them up to the scribed bore helped equalize them. The not so round chambers vary. If you're in a hurry and/or lookin for perfection...use another head. Lol