lightest a-body??
My 73 340 duster, PS, PB, 727, Dana, AL heads, 4 ch amp, Big sub box, 30 lb tool bag, buckets, console, 17" AL wheels and a full tank weighed 3485 without a driver. That's with the spare and the jack, and a few extra tools. It was weighed at the NHRA track scales in Reynolds, GA. Not sure how accurate they are, but I expect the would be relatively so.