can you post an actual time slip so we can see the incrementals?
Based on what its doing, sounds like The dyno the motor was on is mighty happy.
If it was making remotely close to 450 ish horse it would be well into the 11’s with way more mph.
Ok so these are the time slips form last year I left the slips from this year in the motorhome now there gone lol but there about the identical and I see I was wrong on the mph