Drag Race Advice Needed

New to this site. I'm 60 years old and have had many Mopar's in my life. I drag raced through my 20's and 30's in a 1969 Dart that ran mid 11's. I also ran two other Dodge's that were a bit slower. Most recently, I Drag Raced an 11.8 second (best time) 2010 Camaro SS for the past four years and hated it, so I'm going back to what I love. I'm building a 1972 Dart Swinger. Narrowed rear end (mini tubs), SuperStock leave springs, Wilwood Disc Brakes, Full Cage, and 512 CI 440. My goal is low 11's and eventually make it into the 10's.

Unfortunately, I had a severe brain injury in 2014, and I struggle to research what I need to do now with my new project.

I need an experienced 'Big Block A-Body Drag Racer' to guide me on what Auto Transmission to buy (TCI 727? Other brand? Powerglide if I have to?), and what gears to run in the back (3.91, 4.30, 4.56?) in my 489 8.75.

Any help with my initial set up will be greatly appreciated.
Call John at CRT "Cope Racing Transmissions". Tell him 318willrun sent ya. He builds 727's/904's, specializing in Mopars. Welcome to the site!