Anyone running M&H Muscle Car tires?

Well my GTS has a fresh engine with 425 HP I have not got to really try them out on the Dart.But I had a set on a 1969 1/2 Road Runner and they hooked real good.And then I put in a 496 stroker 500 HP and they spun like nothing.So in my opinion they are good up til 450 HP.But I never really heated them up first so if you heat them up I am sure they will work better.
Jim