Agreed--I charge $525 CDN for 5 hrs (which is always a full day) or $600 with dual widebands. A day on the dyno WILL accelerate your program (pun intended) by weeks or months or even years--depending on how often you get to the track. A good dyno operator can tell you much more than what is printed on the dyno sheets too. Can timing and jetting requirements be different from the dyno to the track? --Yes--But it won't be off 10 degrees of timing or 10 jet sizes-If your dyno experience is any good.
There is a thread right now about a stroker with TF heads not running the MPH the OP thinks it should. OP's research says it should make 550HP but it runs 113mph and change. A cheap and easy dyno session would have shown him that it makes about 450-475hp likely on the first pull. Then the tuning begins--Yes I have seen 75hp from the first pull to the last but that is extremely rare. It is usually 20-30 hp gain from the first to the last--And it is often what you can tell from reading between the lines that gets you the farthest. J.Rob
