[bbywu]

The only other test to confirm HP being produced would be trap time or flat out runs. I don't think it is a always a fair or correct assessment to use correction factors and driveline loss to calculate estimated crank horsepower, especially if the dyno used to calculate those numbers was done on a different car, different day, different conditions and setup. I brought up the issue of the dyno numbers to taylorcoleman (OP) is to see if there was a pre-mod dyno to measure absolute change from the modifications and engine tune. I think we can all agree that that is what a dyno is best used for.