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Which one is better suited for the track, 7.3K RPM I believe. The engine will spend most of its time above 4K rpm.

I want to put this intake into my 3.0 12V first than into my 3.2 24V. Just wondering if it is worth the money to get the GTA runners. For the custom runners, the GTV6 plenum will be modified to match it.

Found a graph by the Greekster. Where is he nowadays anyway? Probably at the garage shop.

I would probably go with the shorter runner as the 3.2 has huge amounts of torque . But I prefer modified the side plenum anyway as you can really make a huge chamber and get an even airflow to all the pots with far less effort .
Are you gonna use the double plenum from 2.5 cut in half and joined ? I have tried both twice and its huge work the double plenum . Having said that my third attempt would be even shorter runners and increase the height in the 2.5 plenum by another 20mm . This would really be good . Unfortunately the 2.5 bonnet gets very close .

I'm going with GTA runners, just ordered mine from England.

I will sell my custom 45mm short runners meant for the GTV6 plenum. This can be easily adapted to the 164 12V injector plates. Very suitable for the highly modified 12v or stock 24V.