140+ in an old FL Highway Patrol Car (69 Plymouth with a 440) back in 1976 on Alligator Alley somewhere between Naples and Miami. Heading home from college...open road....no other traffic seen for miles.....curious what it would do. Buried the Certified 140 mph speedo and it just kept going. Looking back at it now, not the brightest bulb in the pack that day. Had we had a blowout or hit something on a two lane road with swamp on both sides, we'd have been gator bait for sure. Still brings a smile to my face when I think of it, tho.