I've been toying with this idea for a while since I can't keep up with the V8's on track days. I just can't justify putting FI on the Z and loose it's reliability. If I would do it all over again, Summer daily, HPDE car... I would get a Vette C5 z06 and be done.

 

swap it with 2jz, ls or vr38 engine lol. Too much drift in my mind.
But op, i think everybody will have different answer and experience to answer your question. Specially that you only ask for opinions from us

 

Aftermarket intake, they work well. This one has proven results