You just asked this question a month ago....
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Pitfalls would be a slight inner tire wear from neg camber. I know a local Z32 with that set up and he said it drove fine, although one of his tires had an odd wear after few months. (he did not get and alignment done aftre the coil over swap).
Go get an alignment, that will tell you just about everything you need to know about your suspension geometry.
What are you after? just looks? tire longevity? max handling? Oem specs? or custom?