not that I am an expert but at one point (prior to my dyno tune) the car was uncomfortable sitting at a particular rev point. It used to feel jerky (as in it was saying go on, sink the boot in).
I think that most tuners (mine included) manage to tune this out, it is just a matter of giving them the feedback. I also think that this power fc and z32 afm idea has come from th nissan boys who regularly upgrade a skyline with the z32 afm. Yes there are technical aspects to it but that is for another day.

The link can run well and make good power within your budget and with your given mods. I would investigate the g3 link if possible as it is a lot better in general than the older models. That way you don't need an afm.

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