The problem is that aerodynamic drag increases exponentially as speed increases. As good as the Ody's engine is, I don't think it's capable of pushing that oversize box of a body to speeds as high as 140, especially with the gearing it's got to work with.
FWIW,
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Drive Safe,
Steve R.
'01 SS LX
Cargo tray, leather steering wheel, mud guards, alarm, fog lights, transmission cooler, in-dash CD player, Kelton subwoofer, under seat storage tray.