New Member-Couple ?s

Thanks for the input 91LX, I haven't changed the rear gears yet. The car is put away for the winter right now, so I won't be doing anything until the spring. About the gears-Will I lose much top end going to 3.73 gears? I don't necessarily want my Cobra to be just a quick 1/4 mile car, there's nothing I like better than winding it out at top end. Also, if I do decide to get the gears changed, what's the best place to have this done? I don't think that's something I could do myself. I do all the basic maintenance on the car but am no master mechanic. Anything up front I could do, but gears I know nothing about. Thanks!

Eric