Is this right? Interesting weights...

[1973mach1]

http://www.mustangmonthly.com/thehistoryof/5786/index10.html

According to this page the 71-73' 351c equiped mach 1 just 85lbs more then the 69'-70' 351c equipped mach 1? I always thought it was alot more then that? Seems soo much bigger. Anyone ever weigh theirs?

Thanks,
Jim