I’m not saying it’s impossible but very improbable that he’s up near 1000 with a roots blown small block. I’ve seen a few of em go across a dyno and I remember Steve Brule saying “a roots blower is like a 900hp restrictor plate”. Look at Finnegans roots blown Hemi in Blesphemi, that’s a fairly serious piece and he was hung up at 950hp for a long time.