The one and only set of ProMaxx heads I’ve ever touched

I bought a lightly used set of the standard 171cc heads from a member here and I'm excited to try them out. The transition from the valve job into the bowls looks really nice. Machining is very well done and complete. I'm no expert but I struggle to see any easy pickings to improve them. I did contact ProMaxx and was given a quote of around $800-$900 to run them through the CNC and turn them into the Shocker 185 version with 2.08" intake valve which are advertised to hit 285cfm @600. I thought that was a heck of a deal and will be doing that. As stated, he was really nice to talk to.