Maximizing flow limited combos?

Why not just send out the heads to someone with a CNC program. Which are they? Seems like you have the budget to say change other pieces of the puzzle. Why not port and have the heads checked out. Or is this together already and you don’t want to pull the heads. Just read it is not together. I personally would not consider that VERY flow limited.
Well, I already have most all of the parts and pieces. So if I can tweak a couple things and get another 50hp or whatever....I'd definitely consider it.

Sending for porting, including necessary valve changes, etc. That's gonna end up costing a couple grand.

I could manage a cam change, maybe some valve job, different valve sizes etc. something along those lines is still gonna be a lot less costly.

When I do end up getting new heads they'll likely be Bloomers.