Rear suspension choice.

if it will be mainly for street use the super stock springs
i have heard that the caltracs make a lot of clatter on the street, but unsure how true it is. Also somewhere i read that the caltracs dont like lots of bumpy roads and have a high potential to break the spring.
i am no professional but i have ss springs on my dart for mainly street. I did look into the caltracs but never pulled the trigger as i would rather have slippage in the tire then a complete hard hook to break something.