Trick Flow small block heads
Looked at the original graph again...... saw this down in the corner after I blew up the pic:
If there were fuel flow and bsfc numbers available, the uncorrected power could be calculated.
Plugging the OP’s weather data(25.7”, 90*, 42.3%) into the Wallace Racing dyno correction calculator..... it spits out a 20% correction factor for SAE J607.
So, for 546hp corrected...... you’d be at 455hp uncorrected.
The only caveats about all of these corrections is....... they were never intended to be used for correcting more than a few %......... so at a theoretical 20%+ correction........ the accuracy is not likely 100%(it never is anyway).
Looked at the original graph again...... saw this down in the corner after I blew up the pic:
If there were fuel flow and bsfc numbers available, the uncorrected power could be calculated.
Plugging the OP’s weather data(25.7”, 90*, 42.3%) into the Wallace Racing dyno correction calculator..... it spits out a 20% correction factor for SAE J607.
So, for 546hp corrected...... you’d be at 455hp uncorrected.
The only caveats about all of these corrections is....... they were never intended to be used for correcting more than a few %......... so at a theoretical 20%+ correction........ the accuracy is not likely 100%(it never is anyway).