You could go small block and get where you want easily at that weight.
A good 4 inch indy headed small block should run 5’s easily. Even a W5 deal would.
Plus you would be shedding more weight


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8