Not sure on the B&G, thought you kinda had it custom programmed? Anyhow, you can have it programmed into the PCM, or, if you want to be able to run well NA or juiced, the MSD retards your timing at the flip of a switch and can give you the timing back for NA when ya flip it the other way.
You'll need a Digital 6 or Digital 7 box for these features,