Just Purchased Virgin 340 Short - What to do with Pistons

Using Wallace and a .039 gasket and a 4.040 bore?=9.53:1 and 9.79 if you use a .028 steel gskt....4.070=9.66 w/.039, ....9.92:1 w/.028 gskt....with 7 in the hole.
Compression Ratio Calculator - Wallace Racing