take the damn transmission off, find your broken springs, replace clutch.. further more... you should be sure that you have ALL dowel pins, the 2 in the ...
As a test, you can remove the calum board and [url= URL=http://www.nismotronic.com/Help/Install.html]relocate CJ2 back to CJ1[/url] which will return the ECU back to stock operation.
213 seems a bit low for the setup... but nevermind, the car is awesome on the road, i´ll be making some modifications to the setup and will dyno it again late...
If you change valves, you need to have the head machined for them so they seal correctly when the cylinder is fired. If something is not broke, why fix it? Unless you have a "zero fucks given" ment...