It really depends on how you use the car.

We do a lot of street driving and race some events where stock style suspension is required so we went with Cal-Tracs.

If your car is more geared towards being a drag car, I would recommend going with a ladder bar for simplicity and weight savings.

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.