318 head flow

Just to drag this back from the dead here are some flow #s off an untouched 308 casting stock valves 1.88/1.6 vs the ported 675s 1.94/1.6
.......308int....675int....308exh....675exh
.100......54........63..........45...........45 +16/+0
.150......80.......109.........70...........74 +29/+4
.200.....117......142.........87...........97 +25/+10
.250.....150......163........108.........120 +13/+12
.300.....164......191........126.........136 +27/+10
.350.....183......202........139.........146 +19/+7
.400.....195......205........150.........154 +10/+4
.450.....205......192........159.........158 -13/-1
.500.....207......192........162.........160 -15/-2