not for a 9 second car. bill says the limits are in the low 11's for that set up i believe maybe high 10's i don't remember. its not a strength thing. after that its better to go full drag 4 link.
my opinion on a 8 3/4 for a 9 second car is if you already have a built one then go for it. but by the time you put all the money into a stock one to make it reliable you may as well just buy a dana and be done with it..