Here are some pic's of my 66 289 heads that I have been working on, with the help from the people on this fourm. I think I may have went a little overboard with the exhaust runners by opening them up to 1.55" tall and 1.25" wide. Maby I will still have a little bit of lowend power. The valves were unshrouded by hand so im going to cc the chambers to make sure they are as close as possible. They were unshrouded for 1.94 intake and 1.6 exhaust, however the valves still need to be ground.