Head milling question

Rule of thumb, though this is not absolute, is for every .010 off chamber face, cut .0095 off intake face.

When I say not absolute, there are those who have claimed to have successfully milled .030 (or just a bit more) and not had intake fitment problems.

I see you had the block decked. That will also influence intake fitment; it acts just like cutting chamber face.

Good luck! Measure twice, cut once...................