that is a sweet burb.....before you jump on the changing of gears part ,you need to do the math and see where your at...im not against changing gears for benefit...but ive seen people go from say 3.42 to 3.73 only fuss about it later....thats to close on ratios and isn't much diff than a new set vs worn out set of tires.....sometimes it takes a big jump to get you to the sweet spot you need to be....
http://www.csgnetwork.com/multirpmcalc.html