A rough estimate:
Aero Horsepower (wheel horsepower) = 0.000007 x Frontal Area x Cd x Speed^3
Take in mind this is the minimum amount of power to maintain the speed you are looking for and doesn't account for rolling resistance which will consume an additional ~5-6% more HP.
I found the Cd for a new edge is roughly 0.36, frontal area is roughly 22.5 sqft. So in optimal conditions you should be able to hit 170.
This calculator is more realistic:
RSR Aero-horsepower Calculator
P.s. Don't do this on the street, find a nice long track or take it to the salt flats. :Track: