Un-equal for shure ! the difference in H/P claims between the 2 are just not there . And If you were going to go all out ,you would put full length headers on anyway
Plus the fact with all the headaces,and B/S with the equal (plus price ) it's just not worth it . back in the day (we thought ) that was the way to go , before everyone started to make full length. but if your not putting out more than 400 h/p ,your don't need them ,and you'll have less tendency to kill something . With all the full lenghth's out there I would see the equals fading away eventually