lightest a-body??

My '65 barracuda is preatty light as well.

Absolutely. YOu cant touch a 64-66 A for lightness. Feather duster only had aluminum bumper and hood hinges, Anemic 6 and lean 1bbl carb for great mileage. My 65 weighs 2850 with a Big block. At 2750 stock weight (give or take a few) you can go 360 (+20 lbs) AL heads (-40) AL intake (-25), AL radiator (-10) Headers (-0) AL steering box (-10) AL transmission (-?) AL driveshaft (-5) remove rear seat (-50) remove pass seat (-50) lexan glass (-10 for rear only) Move battery to rear, remove carpet and underlining (-20) you are at <2500 now w/380 HP. Do more race stuff like ditching heater core, blower, fiberglass hood, bumpers and other and you can get a seriously lean street car. Even the rims goiing to some stock car style Light rims can save 15 lbs at every corner.