Thanks guys, I'm very very happy with the numbers!
the bypass valve just recirculates the air back into the intake system. It has actually been temporarily removed, so it was not on for the dyno.
but I have to continue reminding myself that the numbers are not ideal for comparing with other dyno sheets. Even though it is supposedly whp, all I was looking for was a baseline. The numbers would likely be a little lower on a mustang/dynojet.. I have read about 8% which would put me at about 262whp.... although, I have heard that the machine compensates to produce a true whp. who knows though, that particular argument will never come to an end.
However, the dynapack is a much better option for tuning, and will provide more repeatable results. With that, I will be about to consistently log my gains from future mods with this baseline. I'm very excited.
I just think the 284 looks cool on paper haha.. its going on the fridge like a good report card!