Trick Flow small block heads

did anyone make 550 plus hp with the T.F. heads yet ? I have heard of high 400's . its fairly easy to get 530 -540 with the rpm's

I have not seen a dyno number that high yet, but FABO member nwdart has some time slips that put it solidly close depending on the calculator used. I know he has gone 9.80 at 132 mph at the track with a car that weighs 2990. That was a couple of months ago, so I don't know if he has done better since then. Maybe he can chime in @nwdart