lightest a-body??

thats exactly what im looking at. how are the 67+ darts? thats what i am really liking but want it super light. my goal is about 3 lbs per horse and looking for around 700+ hp lol. BIG hopes lol and would like to have heater, carpet, seats, street legal bumpers. i want it to be able to be a daily driver but also a street killer

i have me 68 slant car down to 2850 without me in it and i still have the glass and regulators in it! i have a plexi kit sitting in it when i get the time.