875 that should run real good. I have max built drives. One is their billet upper the other a built XR case. Both have Imco lowers. Gear ratio is 1.36 and I was running a labbed 30, but I did a little work to the Teague and its technically a 825 now. So a labbed 32 has been good for me. I believe mine is a -0, never tried a shorty, don't think my boat would like it. Of course all of that depends on how the boat was setup from DCB. He's gonna be real close to my setup, maybe need a 33.