Your current ratio says that you'll have good top end but, lame bottom. for good acceleration and good top, you generally wantit to be in the mid 3:1's; if ballistic bottom is what you're after, then try something that will give you a 4 or 5:1. Now this is for pure bottom end only, if you want the best top end, shoot for anything around 2:1 or 1:1 or even overdrive it (1:2; first # being your bell and second # being your spur). for general running, I would just go with a 42/14 or a 41/12, which ever one is easier to change. If you want a more precise ratio, figure in the gear ratios on your front and rear diffs; this will give you your final drive ratio.