Rear axle ratio opinion

While you would feel a difference in performance, It is slight and only you can decide if the cost is worth the little bit of extra acceleration off the line. If your rear end is the Chryco 8.75 or a ford 9" purchasing a second dropout gear section set up with the gears you want, while sometimes pricey, can be resold when removed to recover much of the cost. If your rear end does not have the drop out center section, AND you have to pay for the labor to switch out the gear sets it does not seem worth it to me personally for the little more quickness you'll feel off the line. If you do ring and pinion changes your self, and it's only the cost of the new gearset, then perhaps its worth trying as gear sets aren't terribly expensive by themselves.