Thoughts.
I have a crate LS376/480 (LS3) with the E67 controller. I have a 6L90 out of a 2008 GM truck.
The new Cadillac CTS-V comes with the LSA (basically a modified LS9) and E67 controller and 6L90.
Shouldn't I be able to flash my E67 (and T43) with the CTS-V program and get my combo to work? And then do some performance tuning. This is a resto mod 55 Chevy I'm working on.