My roomates dad has a 67 cuda a body with a 383 in it that ran a 13.0 at the track. I was fortuate enough to run against him. I just got my 295s KDW2s on and with the 4.10s i was infront of him till about 35. Then he hit second pulled in front and kept going. In the end i lost by 2 lengths at about 90. He puts down 370 at teh wheels and i dynoed a t 231/270 so i was happy with the runs. Two runs same result each time.