That is just what you get from a simple math equation. 11% is nothing to sneeze at BUT you will feel more than that when you can get your Pontiac engine up in RPM's quicker. It's the same logic behind using a stall convertor. The sooner your get up into the 'power range' the more power you will feel. Going from 3;08 to 3;42 can make a big difference off the line. When you get your 'sled' moving faster sooner it's easier to stay in that power range. In my experience, a bog with a higher gear off the line will hurt you through the whole quarter mile. It is possible to tune a car just right to eliminate the bog with a 3;08. Having said that, it's much easier to get acceleration out of a set-up with 3;42's. IMO there's a world of difference....