Quote: I would say ( and I'm only guessing ) that the " bracket motors " are technology from a few years back and maybe a few parts that have been superceded by newer and better things. Still not bad engines but far from record setting engines, but still legal.
I was under the impression it was bracket 'mode' not motor. Which is just a tuning changes. Lower rpm chips, different jetting, timing, etc. I could be wrong, wouldn't be the first time or last for sure.
