Which leaf springs to use?

CalTrac split mono. My car sits up pretty high but I like it. Hooks very well at the track. On the street, I'm not one much worried about handling in one of these old cars so to me, it is fine. Best 60' is 1.49 but more typical is 1.52.
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What an awesome looking Demon. How do the calvert split mono leafs act on the street?