Originally Posted by BGTV8

Since the VQ35De had a single intake plenum and the VQ35HR a dual intake plenum, I would suggest that dual intake offers an improved response than a single.

However, I have not heard of "roll-racing" (and I suspect I probably don't want to know), so it may be that there is something about the application I don;t understand.

Best of all will be 6 ITB ... like here:
More Engine Development – 414whp with Kels *Video* : OnPoint Dyno