V6 vs V8

318willrun said

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....

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With EFI it's all about the tuning, (and so any advances have been made in aftermarket EFI in the last 5 yrs more racers are using it, and will continue to switch) Typically aftermarket EFU systems haven't adjusted well to altitude or barometric changes, but many systems now operate just as well as factory EFI at elevation.

Also remember the 9 sec and 10 sec cars you talk about are mostly tuned with wide-band O2 for optimal performance. And yes a carb will easily keep up with a EFI system for WOT pulls if both are tuned appropriately, (which is all a drag car truly does). But change variables or conditions (like idle, gear, load, altitude, or temp and a EFI system can more accurately provide fuel and correction with those changes. Especially a EFI system that has spark control with a knock sensor as mentioned.

That is exactly why the "v6" you refer too has the power of the 318 and all the other great characteristics you desire.