Quote: Years ago my car ran 11.87 at 111.9 mph w/ a set of bone stock 906 heads on a 509/292 MP cammed 440. I switched to a set of mildly home ported 915 closed chamber heads...no other changes and the car ran 11.40 at 117.4 mph in similar conditions. That gain in flow and a little compression REALLY woke it up. Was a whole different animal.
Years ago my car ran 11.87 at 111.9 mph w/ a set of bone stock 906 heads on a 509/292 MP cammed 440. I switched to a set of mildly home ported 915 closed chamber heads...no other changes and the car ran 11.40 at 117.4 mph in similar conditions. That gain in flow and a little compression REALLY woke it up. Was a whole different animal. 
