For some reason over the last few days my screen has been kind of jittery. I thought it was interference from the USB Wireless Ethernet adapter. I bought a regulator DC-DC power supply and went ahead and connected it last night and it fixed the problem.
500hp+ can be very streetable. My old car (93 Trans Am) had about 525hp before I ported the heads (355, supercharger, cam, pistons, etc) and no traction control. It was very streetable, I drove it through ice, rain, everything, on Nitto drag radials. My new motor (should be installed in a few weeks) will make about 550hp (flywheel) and should be very streetable also.