I mounted Ferrari calipers and 911 rotors on the rear of my narrow body car. The rotors are 5mm deeper than the 914 solid rotors. Either you need to add a 5mm shim between the hub and the rotor and move the whole assembly outboard or you add washers between the caliper and the trailing arm and move the caliper toward the midline. (Eric can provide the shims) I chose the washers so I could still get 205's under the rear fenders.
Anyway, my emergency brake needed to be pulled way up to lock the rear wheels. (I chose the Ferrari calipers so I could still have an E brake) I tried adjusting the venting distance a couple of times but it was right on and the brake pedal was nice so, I used a forked stick to hold the handle way up and felt kind of foolish. I was thinking my cables were stretching.
This morning DOH. I moved the calipers toward the midline, the cables are the right length. I changed the geometry of the system so no wonder it doesn't work. Now I just need a solution to take uop the slack.
Dave