Check out your rear end and figure out what gear ratio it is by seeing how many times the driveshaft turns for one full revolution of a rear tire. If you have something like a 2.76 or 2.94 you may find just a gear change may be enough to give you the extra jam you are looking for. If it's not enough, it's ok because with a hotter engine build you would probably be looking at doing a gear swap anyway.