Ford 272 C.I. runs low 11's. Why do Mopar guys need 408's?

I have bracket "raced" my late model pony car (brand immaterial) but it certainly is NOT a bracket car. Imo, the definition of a bracket car is something, whether street/strip, daily driver, or full on race car, that can cut a light, and put up consistent times. My car CANNOT cut a light to save its life, some sort of throttle delay incorporated into the drive by wire, but it is consistent. It will be consistently different by at least a couple tenths from run to run.
I used to make fun of the horrible lights I would see by the late model chargers,challengers camaros and mustangs...... till I tried it with my car.
I'm not laughing at them anymore.