Had the 150 rallye speedo in my 73 Charger pointin straight down goin out I-16 probably about 1981. I guesstimated we were goin about 160-165. It was a bone stone stock 340 car with 2.76 gears.
Back then I 16 was smooth and almost abandoned once you got away from Macon all the way to Savannah that was a good road for high speed back then. David
