When you are there, make sure you keep it below your tech inspection limit.
The have radar along the route to keep the State happy and exceeding the speed limit of your tech class can (will) result in invalidation of your "race" licence and you get a ticket for the amount you are over the POSTED speed limit at the point measured. So if you tech at 140 and are doing 145 in a 55, you get tagged with 90 MPH over the posted speed.
I haven't done the run, but several people in my area have and they say they are very serious about the tech limits and the State Police are standing at the Finish line waiting, if you violate.
Have fun, but keep your tech limit in mind!