Originally Posted by S10xGN
Hmm, I've got a DR4 box and there is nothing stamped there on it. Mine box has a 3.08 1st gear to be paired with a 3.25 rear axle, Spec stage III clutch, and an aluminum flywheel. This will all go in a lightweight, high torque street combination. In your case, I can "feel" several potential problem areas. Car weight (?), clutch/flywheel (?), gearing (?) and lack of low-end torque.
I have a two, three and a couple four speeds, all with the ratios stamped on the case. I think all mine came from Hightower, so maybe he stamps them and Jerico does not. Sorry for the confusion.