I'm 175 wet with chump change in the pockets.
A little bird told me that an early B-body can be brought down to the thin line of 3100 lbs while keeping all steel parts.
Like said things like bolts, nuts, washers, cutting out access fat in panels that are not structural, Bubble windshields, Lexan windows with aluminum tracks that actually roll up and down like stock, aluminum interior panels, all undercoating, sound deadening removed, Aluminum hood pins, lightweight bumper brackets, aluminum radiator and aluminum front valance panels, aluminum steering column, lightweight center links, you name it and soon enough it will be a contender.
Like you said 572, why have to make more horses when you can take the weight loss courses.

What I have left that weights the most is bench seat. But I refuse to take it out.

Like sport440 said, study the seat. I know that the bench seats weigh exactly 100 lbs. I had one in mine, out it came and in its place came the A-100's with hardware. See if you can take weight out of the half that you do not sit on and fabricate it to look like factory stock. I would.
The F.A.S.T guys have some of these tricks up their sleeves I'm sure.
Lighten the front by fabricating the grille to resemble the 64'Hemi A-864 mug. Gut the hood to only the skin and re-inforce where the hood hinges poke through.
Aluminum strut rods, gutted glove box door, shorten all wiring harnesses, Plastic head lights, Aluminum door hinges, I know a guy that makes them just like the Factory, (Your doors should be lighten as well to accommodate the hinges because they may weaken with stock door weight) aluminum brackets for all the accessories on motor, Thin wall aircraft stainless 304 tubing for the exhaust, Aluminum exhaust hangers, Anodized aluminum cover for the Dana rear, Braile battery,

There is nothing behind doors panals or panals in the rear nothing..lol no headlights its decals. Have light weight battery. Bumpers are both fiberglass with aluminum brackets. Its all lexan no glass. Nothing under the dash. Never thought of aluminum door bracket good idea! Passenger side of seat is gutted underneath.

Shawn...Where did you get your headlight decals? I will be watching this thread as I want to get around 100# off mine...

If you like, I'll link you up to the guy. Give a couple of days cause I'm dealing with some Family matters now. I'm on here to purge the stress. If only my car could run on a bottle of Stress, I'd be unbeatable on the street and track.