Hey guys, just boughty my 85 Rx-7 GS last week, and it handles like a dream

I've been reading up about it on the net. Just little sites about this and that, and I've come accross some 'interesting' stories about this and that. Some I have to wonder about. For example I came accross a few places saying that the redline on the rx-7 tach is just a suggestion, and they tell stories of Rex's revving 12k and shrugging it off. I know rotaries are much more effecient at high rpms because of rotation instead of reciprication (spelling ?), but 12 grand ? Holy freakin' A. That can't be true ... can it ?
Another confused newb. Let me know. Thanks