Need everyone's oppinion

dana 60s take too much hp from the engine,imo.They are much heavier,and have a larger ring gear,thats 2 things that will hurt the performance of your car from a standstill forsure,unless you go down a few gear ratios to compensate.In other words,if you are running 3.91 gears now,youd prob have to run 4.56s in the dana to go as fast as you do now.