I used to live in VT and there's a stretch of Rt 4 that runs from Rt 30 to the bridge crossing the end of lake Bomoseen.  We go up in the summer.  In the 70's I ran a '65 365 GTC Daytona Ferrari up to 155 on the same road.  I go early morning and run it both ways to check for traps & traffic.  I'll measure the distance this year...
  I try to stay under 100 here in MA, but sometimes it's just sooooo hard to behave...
PJ