Hot Rods Angle milling model A stock head

I've resurfaced many heads just to clean them up, I have a full size floor mill with power on xy&z axis and a dro. I've read on the utter web site it is safe to remove .125", also read about angle milling, how much can I take from the left side and how much more can I safely take from the right side where the cavity is large.
thanks nick c

 

I think you would be better off buying an aftermarket high compression head. When you take off .125 there is not much left between the deck and the water jacket. If you mill out all of the recess you need to be sure your pistons don't pop up over the top of the block or they will hit the head. Put your general location in your profile. You can never tell when it will pay off.

Charlie Stephens

 

How many times has it been milled in the last 89 years or so? Eighth inch might be good from a new head. Seems like a lot. What is yours?

 

A****st other early flathead cylinder heads, I have angle milled a Ford model A head. I put a pair of .060'' shims under the side of the head with the circular indent, then milled off .100" off the face. Applying more than .060" or so of 'wedging' risks the the cylinder head fasteners binding in the holes in the head; I always re spot face the holes on the top of the head after wedging to ensure that they're parallel to the new cylinder head face after machining.