Look at the small coolant tube that goes to the water pump. If it's level with the head surface then the head has been cut. Most folks would cut .090 to .1 without much thought. The coolant tube is like a go no go on the cut. Also if the lower row of manifold studs are out, it has been milled. You will still need to CC to tell what your chambers are at.
Here is a no deck cut:
View attachment 1715534384
Deck cut:
View attachment 1715534385
