Why did your dyno operator input 5.10 as your final gear ratio? If you have the 6-speed and the 3.90/3.91 rear gear your available ratios are "14.7:1 8.87:1 6.43:1 4.91:1 3.91:1 3.30:1." A 5.10 doesn't make the list.
That will render the data useless and inaccurate, except for tuning from one run to the next for the net changes.
You could be making more or less power than the chart says depending on what gear the operator was in during the pulls.
That sucks. I hate people who don't follow procedure when that's what you pay them for.
Maybe you can get him to redo it correctly.
This was done on church's dyno correct? If so the numbers are inflated. One s2k went to church's dyno ( he is centrifical SC ) and made 500whp. Went to mase and got tuned....now he makes 15% less....on a dynojet...hmmm. So nice numbers but likely they are lower than what you are seeing here.