Hi Paul,
Thanks for posting the dyno sheet.
Just looking at the sheet, the only real difference i can see between the two power runs is that the one that makes more power (blue line) is a dyno queens power curve as the "MR GTR's" (green line) has a far more linear power delivery which would to me represent a more "real world" performance gain.
I know which car i'd rather drive....
Just a couple more things!
i wonder what is your definition of "built by myself"?
Did you personally port, polish, surface grind and seat the valves on the head which is being used on the current engine? And did "you" balance the crank ?