did you see a diffrence in the gear?

hi i just wanted to make sure im doing the right thing by getting 3.73s because im pretty sure that 4.10s would do a hell of alot more.right now my car has full intake, full exhaust, cam, rockers,upper&lower intake manifold and i ran a 9.2 in the eighth mile.now im ordering gears this friday and wanted to know if 3.73s would boost me up alot.i plan on putting a 150 shot in about 8 weeks.i was hopeing some of you guys got a before and after time slip when you installed your gears.so i can see what the diffrence is between the two...thanks alot......