Jeting the 670 Holley

Looking for you thoughts.I have this 670 HOLLEY,it comes with 65 jets up front way to lean me thinks,it like 69 front in my old Holley,600, so that is the first thing i did on the new Holley, but the rear are 69 still sounds too lean to me on the new Holley, the old 600 had the plate in the rear but don't know off hand what it was jeted at ran great,.,so what are your thoughts on jet change in the secondary's leave it at 69 or 70,72.