Not everyone agrees. I've seen posts where people say they have driven cars with both and are going to take the 4.10s out, or with equally modified N/A cars that 4.10s will get the jump out of the hole, but that the 3.73s take the lead in third. Most of us do not have the opportunity to do direct comparisons so I tend to listen to those that do.If your plannin on runnin low boost. i think everyone can pretty much agree that to get the most out of your N/A motor you should run 4.10's and its also the same if you run low boost. at least thats the info I got when I asked myself.