We generally do a CNC program on the chamber while leaving the ports alone. After valve job and blend we end up at roughly 353 at .700 with a 2.200 intake valve.
Some comparative data is below. Remember that every flow bench seems to read a bit different - use the information for comparative between heads on that same bench and you'll be OK.....
http://www.survivalmotorsports.com/FE-Heads.htmlBarry Rabotnick
Survivalmotorsports.com
