Low 10’s, even in the southern heat and humidity isn’t all that tall of an order in a Cuda....... the hard part is reaching that goal with something that isn’t a bracket race car with tags on it.

As long as you’re willing to live with the drivability that goes with steep gears, a loose converter, and cam maintenance....... and probably enough compression to need to at least mix the gas.

For something more streetable........ back it down into the high tens...... put a small shot on it to get the rest of the way.

I’d be shooting for at least 750 std corrected hp if the N/A target is low tens being raced in the south central region.
You’re going to lose 75-100hp as it sits in the car in typical weather down there.

511, TF270’s, 11.5cr, 400-3/4500 carb, 2” headers, roller cam, 1.6 rockers.
45-4900 9.5” converter, 4.10’s