I run this exact size Falken RT-615K on my Challenger. Tons of grip, especially hot. At Carlisle I was starving my carb. NEVER had that happen before. Kept lowering the floats and finding more power in turns. I'm buying tapered floats for the carb soon.

Any tire over-driven will slide. You just have to find the limits in a controlled environment. Doesn't matter if its a d70-14 or a 285/40ZR18. Eventually there will be a point unique to the tire when you overpower the "friction circle".
I'm very happy with the Falkens.

My buddy ran them for a weekend on his 1979 Magnum (Carlisle 2013) and they were fine in the rain and night. He actually commented how nice they were, but didn't like the height. And I drove the car to a heavy class win! Just remember, when you reach the wear bars, they aren't a street tire anymore, and as they get close to that, just be mindful of weather conditions, like any tire.