Well, with those ratios, you are going to want a 3.23 rear gear ratio to be quickest through the 1/4 mile or on a road course. The 4.10 gears will force an extra shift at around 95 mph killing you in the 1/4 and will pull down your power band in 4th gear down to 4800 rpm on a road course above 95 mph. That will kill you on the straightaways.