Cylinder head has arrived!
Port cross sectional area was kept on the small side to promote high velocity.
We ended up at 330ft/sec at 6500 rpm.
The finished ports are very quiet on the flow bench, and show no turbulence
all the way up to 48" of water.
The exhaust port was kept small to keep up velocity for turbo use.
If money was no object the exhaust port floor would be welded up and raised.
The inlet port is tricky to increase airflow. The swirl type port requires someone
with experience to get them to flow without losing all the port velocity by grinding it
larger everywhere.
We did experiment on 2 cracked heads to see where material removal was beneficial,
or detrimental in some areas.
Just grinding the port bigger made little flow gain.
