With the 3.55 and guessing about 900 ft lbs torque, the 3.55 with a 30 inch tire will have a ton of launch torque. Starting line ratio is 2.45 x 3.55 =8.70. Torque times 2 (converter multiplication) times SLR is 15660 ft lbs at the axle, and less at the tire ,12528. Take away 10 percent for driveline loss, you still have 11275 lbs of thrust. Divide by the car weight, the thrust in Gs comes out to 3.09. I doubt you will be able to dead hook the car with a 3.55 gear. Maybe a 2.76, but Danas don't come with those . So the 3.55 is your best bet for now. Tub it, put a 15 x 33 x 15 slick on it and some wheeliebars and ride the back tires to the 60 foot mark!