Sequential Multiport EFI

I agree that MPFI is mainly for better mileage and driveability. TBI will give plenty of power. There are many that are self-tuning, and some made to look like a 4 bbl carb. However, max HP requires a single-plane intake, so no way a TBI could control O2 on each bank. Kind of against the TBI concept anyway, which is "mix first, then distribute". I don't even know which MPFI kits can work with multiple O2 sensors. For fuel alone, you don't need sequential injection, so don't need crank & cam sensors. Batch fire is fine for max HP.