Since a few people asked me about this at track day I just thought I would add a few additional pics of the adapter plate, spacer and valve actuator I made to check my exhaust ports and manifold.

Here is a pic of the setup for testing the exhaust port . . .


And my device for precise exhaust valve control . . .


And a pic of one of my exhaust flow tests in progress . . .


And here is one of my manifold testing set up . . .