Faster, a little, but quicker no. You're probably making 350-375 HP. If it hooks and goes then maybe a 26" tire might hook, but I'd say no. You want the largest contact patch that you can stuff under the wheel well. 9X29X15 will give you the best grip for a standard wheel well using a 10" wheel. Run a taller street tire to keep the R's down,cheaper than a gear swap. 3000-3500 stall converter built to your cars specs. That should get you to 12.5's . Look up Richmond gear calculator and plug in the numbers. This is only a guide