Starting a BB Duster project

Out of curiosity was messing with one of those et hp calculators at my et, I added 30hp, and it was almost .3 gain.
Ryan Johnson used to say those are very accurate. Looks like the best dyno is the track and anyone wanting to have a cooling fan shoot out should do it at the track, but then again someone would say the weather must have changed. Never gonna win that type of debate.