nhra rules about 4pt roll bar
It doesn't meet the new standard as "acceptable" for running 11.49 or faster.
You can still put a 4 point in a car, it's never been illegal. Running a 4 point is the same as being considered you didn't have a rollbar, which limits you to the cut off point of 11.49.
Add a door bar and you're good to 10.00, provided the size of the current 4 point is within spec.