Akron sent my dyno graph to my email...the first number (340) was because the belt was slippin terrible... after 4 hours of tuning this is what we quit with
Thats a pretty dyno graph, I like how both HP and Tq are nice and constant. Tq starts falling right as the peak hp is comming on. Very nice!!! How did your Air fuel look?
As expected with a centrifugal blower, the torque really comes on strong from 4000rpm upwards and the engine's still pulling hard up to 5800rpm. Thereafter, it noses over so there's no point going beyond 6000rpm. There's at least 400lbft of torque from 3200 to 5900rpm, so the powerband isn't as narrow as you might think considering peak HP arrives at 5500rpm and peak torque arrives only 700rpm lower than that at 4800rpm. An 11.5-12.0:1 A/F ratio is exactly what you need at WOT on a forced induction engine.
my suggestion is to keep the revs down....that and detonation are what will kill that motor at those power levels. just dont get greedy winding it out and you should have a long fun life with that power .... if you have a good tune and piece of iron