I have run 10.70's at 3700 lbs with an all stock 8-3/4. I know I am pushing my luck and want to go with a Dana some time when I can afford it. I use a Dynamic 9.5 street/strip converter as my car does not launch real hard but hard enough for me which I am glad as it does not seem to be to hard on the rear. But I only race a few times a year. Ron