Random question for anyone at dyno day

[X Factor]

Anyone who wants to speak in I don't mind, but I of course posted my dyno on the 4G forums, because there isn't a lot of dyno posting, and it's nice for other members with the same setup as me, since there are a few, to know what they should be running.

So anyway, there is a guy saying I should be running much closer to 300whp, which I immediately thought would be nuts. The car is rated at 263 to the crank stock, and you have to account for something like 15% loss to the wheels, right? So 225 is you just purely assume that my car loses exactly 15% from crank to the ground.

Is he right in assuming I should have gained much more whp?

I'm thinking my gains are about what I expected, not only because numbers don't lie, but because it's an automatic also, that could account for some loss, it's not tuned, etc...

Just looking for feedback, want to see what you guys think!

After deleting my last cat with a test pipe and then a tune should I be able to expect over 250whp? For now I think my goal would be 300, but i'm thinking with the small aftermarket 275 might be more realistic.