Well, I may look out for a 3.55 third member then. It does drive well with the 3.91's. Just want a little more on the freeway for some longer trips. I also really like the new PTC 9.5.
If that's[/i] the goal (or the consideration), there are calculators that will tell you how much your RPM's will be affected. I think [i]the track will be the only way to truly figure out the affect at the track.
