Go try it and get back to us. Thinking a number keeps climbing but the actual speed is not is ridiculous. Yes speedometers can be very optimistic, but that typically shows up at much much high speeds. Example being an e60 m5 indicating around 200mph while a draggy shows 187
ETA: with a quick google search I found this vid of a stock gen 2 doing over 200kmh (ie 124ish) on a draggy. Ford also says the gen3 still has 450hp stock but we know it has dif compression and dynos have shown differently as well