How to prepare for engine dyno?

The 434 is the only engine I've had on a dyno, going forward any engine that is going to make some steam will be put on a dyno too. There is much to be learned and you can actually see what if any difference changes make. It would take many trips to the drag strip to learn what I learned about this engine in a few hours. For me it was money well spent, your mileage may vary.