Me an a friend both have new 04 scsb 5.3s, an we are about to change are stock gear 3:42 to a 3:73. An I noticed a few of you guys have changed your gears to. So anyways here are the questions I was just wondering.

1. How much will the 3:73 lower my 1/4 mile time by?
2. How much will it change my gas millage?