IDK, my step dad has been running stock rods, not so sure about the crank, in his race truck which is an 80 chevy pickup for over 10 years (same stock rods) and runs consistant mid 12s. In a car we believe its good for at least a mid-high 11 second run. At the tree he revs the motor up to about 7K before dumping the clutch, he was also told that his bog warner tranny would never hold up to that... never had a problem with it.
I'm not saying they are bullet proof and I was quite surprised to learn that they were stock but hey, whatever works.