This doesn't require you to delete rear brakes. Many drag race cars delete rear brakes, and the OEM master cylinder doesn't work well for doing so. That is why we suggested on our description. This will work perfectly fine for your braking setup. We've sold over 500 of these kits, 90% of them run it with front and rear calipers. All of them were happy with the braking.
I think some of you have some incorrect info on how brakes work, and how bore sizing would effect the braking. Bigger is not better. The single feed master cylinder we use just means you have to T the outlet to make it 2 lines. Most master cylinders are a single feed design internally and the master cylinder would split it, or its a single feed reservoir feeding an internal proportioning valve. None of these effect safety or braking power. If its a 7/8's master cylinder...its going to put out the same pressure as the next 7/8's master cylinder. Just keep in mind that without the booster a 1 inch or larger master cylinder is going to be very stiff with the pedal ratio on your Z chassis. So 7/8's is the way to go.
If you have any questions or need anything else let me know.
Thanks,
-Logan
Logan@ChaseBays.com
205-623-2188 ext.1
