Leaking Coolant

If the holes are hogged, the heads might be milled at the limits of intake fit without having it milled. Any evidence of coolant in the cylinders?

Your photos are OK but hard to see detail at the ports. How do they look on the head /intake mating? Any sign of (coolant) port overlap?

We had one member on here ended up with a cracked intake, or so he claimed. That thread got so far out of this solar system, hard to say.