My buddy's BP Gran Coupe started as a 383 4 speed car and then he put a Dick Landy 440 w/ blower on it and topped off with NOS.
When he sold it - I believe it went to Sacramento and it was primer grey as he didn't paint it yet. Would be really interested in finding out what happened to his Gran Coupe. I'll never forget when I got up to 7lbs of boost going onto hiway 92 and being planted to the back of the seats. That thing was a monster and loved to move.
Not many BS, BH, BP's out there with blowers on them so when I hear of one I always think of my buddy's car.
B