Absolutely. I always thought the power was in the A/F They did a dyno pull with a 450 engine. To ikkustrate the point they ran the car at a given rpm range and adjusted the A/F ratio while we watch the HP and TQ numbers. The power remained relatively the same over a fairly large A/F ratio range and then dropped off. They then did the same and adjusted the timing The power dropped off significantly when the timing was off just a couple degrees at any rpm range.

This is a HUGE advantage of EFI that I was obvious too but must be second nature to experienced EFI tuners.

You can really tune for power (with likely even better gas mileage) on a street or street/strip car that sees varying rpms and loads.
Very Cool