273 302 318 340 build

4spdragtop said
I dont have the #'s in front of me but I believe .085 average for 83 318 and 0.155 for the .030 over 70 318

so .085 in hole with .28 gasket wounder how much quench distance it have with a 302 head? anybody? i come up with .365 is this right? that tight from factory,..humm