I think Ripa was in +400 DA. Good but for what I normally see, but certainly not incredible by any means. Dodge wouldn't have to swiss cheese or do anything physical to their test cars. I've always bet they put special tunes in them. A little more RPM, a little more timing, bingo. If these ran 8.90s out the box there'd be no "chase" and excitement following the cars. Everyone would go run 8.90s and everyone would move on. Instead they'll spend 3 years chasing the number
Playing with the Wallace Racing Calcs 148MPH is 1,049HP, 151MPH is 1,114HP assuming a 4200 lbs car with driver. This is crank HP.
My car had a 2.7L blower on a Demon motor making 20psi. I'm still surprised how much faster these cars are out of the box than mine was.