I haven't weighed the car yet. The aftermarket K and rack and pinion is definitely lighter than the factory one and steering box. The links are lighter than the leaf springs and the aluminum heads and plastic intake are certainly lighter than the stock cast ones. So realistically its probably closer to 3000 but I was just saying 3400 to be generous. Around 700ft/lbs of torque. I've only broken one, but at $1600 a whack, I have the 60 and I can built it for the $1600. Weighs the same and is much stronger so seems like a win win.
I will also add, I have had every part of that car apart and upgraded besides the rear diff. That was basically a 50yo rear end getting served a hot supper.