Southerner they are around 59. Those valve shapes sound good I'll check into it. Facing around the sides of the valve area is where I was hopeing,because these heads will take a .020" bigger than original intake valve and unshrouding without breaking thru but I have no idea how much would have to be removed with unshrouding a .020" bigger valve.
Denny thanks for those figures they give me a better understanding of what material has to be removed seeing that I havn't a clue of how much 10cc would be.