Check this out !!

[Chevy454]

You can cheat up the HP if you accelerate the dyno slower...ie, use a 300 rpm/sec accell rate versus a 600 rpm/sec rate...won't make a ton of difference, but it's equivalent to skewing the SAE or atmoosphere #s. On the SuperFlow I've played on you can set the accell rate to your liking, turn over the control to the computer, mat the throttle, and it will accellerate it at the set rate...

That Mope did have a lazy tach, though...but Colin, keep spinning those toys of yours tight, 'cause RPM is still a main function in the HP formula!