He mentioned the dyno on pump gas, not the time. He was likely referencing the GIAC 91 dyno result on the GIAC dyno where it posted 402 whp.
As we all know however, GIAC 91 is good for maybe 12.7-12.8 @ 110. So no it’s not making 400 whp unless your head is in the clouds (or unless your dyno is very friendly a.k.a. not repeatable by anyone else on a third party dyno)
I believe that was that scam artist who works at Raven Motorsports …can’t remember his name. He was trying to post as a ‘happy customer’. Remember he slipped up and posted using the Raven motorsports account (GIAC dealer) then tried to backtrack and delete the post, but unfortunately lots of us saw it and screencaptured it.