Hi guys! We are making model specific GM Connect-and-Cruise harness and ECU mounting kits now. We have a few done, with more models to come and available by request. Our new website and store is almost done, and we are currently doing product photoshoots, but this should tide you over.
Our kits include:
ECU and TCU brackets with optimum harness routing and hidden mounting where possible
DBW pedal mount (bolt in!)
Firewall wiring pass thru plate with grommet
Fuse box mount
Fuse box mounting tabs (available universal/bulk too)
HARNESS BRAIDED SLEEVING KIT!!!!!
Here is some shots of the 68-72 chevelle kit. The ECU is mounted behind the passenger fender (no disassembly required, only drill 2 additional holes) with the Fuse panel cleanly mounted by the battery. The TCU is behind the driver inner fender, and you can guess where the DBW pedal is. The sleeving kit includes all the braided sleeve you need for the engine and trans harness, cloth 3M tape, mounting hardware to secure the harness to the back of the motor and the fuel rails, AND install tools for the split wrap!
Cool hey? We sell the braided kit on its own too.

the Kit for 68-72 A-body

the universal fuse box tabs

the wrap kit installed
Heres the fuse box mount in mockup, the ecu is directly behind it. Two of the holes are there from factory. The kit comes with Stainless hardware.