Great build, I hope to see some pics of it in the car!
At the end of the day, dyno's are a tool, nothing more, nothing less. Many car's set ups are usually never tuned to their full potential and may not show the engines measured horsepower. In saying that, I have seen a few instances where more power has been shown in the car.

Glad to see it all come together Steff, after a set back or two you've netted some very positive results