Top Speed stock 5.7?

Top Gear had a new Challenger up to 170, at Bonneville. They did duct tape the body seams and remove the mirrors though.

I can't think of his name but there's a guy on here with a 6.1L carbed hemi in an A-Body that claims 140 MPH. He lives in Germany and cruises the Autobahn, so I think he's legit. Of course he gives the speed in KPH, but I can do basic math so I converted it.

I feel pretty confident that a stock 5.7L Hemi with a decent tune and headers (400-425HP) would be good for 130 MPH maybe 140. Aerodynamically speaking anything north of 150 is a whole different world. I am pretty certain that my butt would begin to pucker at 130.

Since Gen II hemi and Big Block Darts often run 150 in the quarter, I know these cars are capable of speeds north of 150, would I feel confortable doing a banzai run at 160 in a 40 year-old Dart? In a word, no.

Regards,

Joe Dokes