V6 vs V8

I get that VVT is a plus. I don't think the heads on most V6's outflow magnum heads with a mild port job. I also don't think EFI is a huge performance enhancer. If so, most 8, 9, and 10 second cars would be running EFI and I don't think it's money either, not when a lot of these cars have 20k in them. I found when I lived in the high altitude, FI cars did not fair in performance as well as carbs. Better valve timing VVT and computer controlled ignition timing would be a plus. However, you are trying to make up the difference of approx 100 cubic inches. I just find the thought interesting....