Anyone on here done this on a Chevelle/El Camino? I see lots of different information about how to set these up. For the Camaros, it looks like the brackets need to be flipped. I'm wondering how they have to be setup for a 68-72 12 bolt. I have all the parts #'s and looks like a nice setup for about $500($150-200 for used) I think it's the same kit Kore3 is selling with the Drum in hat parking brake. The only bummer is all the parts are special order, so they can't be returned.

Anyone that has info on this chime in.

You don't have to flip them on a 68-72 12 bolt,you will have to shim between the axle flange and the backing plate to center the abutment bracket/caliper over the rotor.
Then all you have to do is get a custom e-brake cable made with the A-body hook up on one end and the LS1 on the other.The tricky part is fabbing the mounting bracket for the
e-brake axle mount, but it's not that hard if you have the stock LS1 brackets and a welder/grinder.