I run Nitto 555's on both my Mopars. They are the only drag radial tires out there with a speed rating on them, 186mph, if memory serves. Both cars are street driven 99.9% of the time. Only had them in the rain a few times, but the cars drove and handled normally. When it rains, both cars have to been driven with due care with any type of tire on them.
The '68 A-body has the 275/60-15's on it, it handles great and hooks up very well. That car has just under 500 hp, a 2.67 to 1 1st gear and 391 rear gears.
The '70 E-body has the 325/50-15's on it. The Nitto's actually make the car safe to drive on the street. It has just over 700hp, a 5-speed and 3.73 rear end gears. With regular street tires on it, the car felt like I was driving on snow covered roads. Before the Nitto's, it would just annialate street tires and the car would drift sideways at 70mph on the freeway. While it was fun, spinning the tires gets you sideways with slower acceleration. The Nitto's hook that car up enough that it will only spin the tires in 1st gear, and rarely spin in 2nd. It just hooks, and they last!
PS: as with any tire, I use the recommended rim size and use chalk to determine what air pressure I run in them.(scrub a chalk line across the tread and drive a few tire rotations to make sure I have full tread contact across the entire tread)
Both cars attain full contact with 18 psi in them. It helps with ride quality, traction and wear.