I think the 1.30s are there to be had with possibly some suspension tuning, I'm not a great chassis guy but some on here are. You might give up all you can think of on your setup, motor and chassis, shock settings also. Does you car carry the front tires, leave straight out? Sometimes it is the small things that will help someone give you something to go with.
We have a 66 nova that runs comparable times at 2700lbs. It runs 1.29-1.33 depending on the track and weather.
Curtis