8.25 vs. 8.75?

Hey Folks,
I am new to the site and have a opinion question for y'all. I have a 68 barracuda with a 413 wedge,727, purple cam,750 holley,and headers. It has a 8.25 now I think, but inherited a 8.75 with 2.76 ratio,new axles,11" drums when I bought the car. Should I change to the 8.75 or run the 8.25 as long as it lasts?