318 build up
My reasonig was what each of of could do is moot. I'm not sure what article you're talking about. I didnt read any...lol. Is there a link to it? Also, with NOS, overcamming is what you want to do, and running the smaller port and opening the valve further keeps the velocity up, and lets it be driveable over a wider rpm range. The car will be living between 2200 and 3500 for most of it's life, and with mild gearing it wont be trapping at 6000 rpm.