David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

Well this is not my area of knowledge, but the way I read the table in the DC Engine Book, the -.040 is the piston down in the hole.
So with a .020 gasket and 59 cc head a standard bore will be about 10.2 CR
Estimating with the .030 gasket closer to 10:1 CR