I think with more gear( run street friendly 4.10) a single plane intake ( knockoff dual plane currently), roller cam( currently a 231@50 hydraulic in it) more compression(10.5) good set of headers(99 dollar cheapies on it) And removing the power steering, factory water pump and fan, what I have with those mods would go at least 11.20's without much of a sweat. The heads are ported magnum RT units. Edelbrock magnums ported would I am sure make more power and save some weight. I can see getting in the 10's pretty easily with the right parts. I am shifting at 6200 and trapping at 5900, not optimal. This all said, this motor was built and screwed together with excellent machining and thought, that is definitely worth something.
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
