Like I said, in my mind, fuel pressure in a carb application is an aid to keep the fuel in the bowls "primed" for when it gets pulled out by the low pressure under the venturi. Plus, your fuel pump ius almost always below the carb so there has to be some way to keep the liquid from draining out of the bowls.
In any event, in a carburetor, fuel basically drips out in solid form so it needs some sort of pressure behind it to get it moving into the air column. Yes, the booster is what atomizes it. But carbs don't "need" a whole lot of fuel pressure because they're not spraying fuel, it's being pulled out from below in solid form until it goes through the booster. And what about the accelerator pump shot? That's basically a stream of raw fuel that gets dumped directly into the air column. How does that get broken up? Or when you have a choke?
I honestly don't know exactly how the fuel gets atomized by the Sniper. It's basically a digital carburetor but I know it relies on spraying the fuel in pulses into the plenum at 60 psi instead of relying on pressure differential below the venturi to pull it out. Whether that does a "better" job of getting the fuel into the air column is an engineering question that's way beyond me but based on how well it works, I would have to think there is some benefit to the higher fuel pressure.
I think both do an OK job and have their place and whether one is better suited for some particular intake configuration is based on the application. If this was an all-out race car, I probably wouldn't be running EFI because there's no part-throttle drivability concerns. But when I'm driving a car with a Ricky-Racer single plane intake and a rowdy cam on the street it's nice to know that have the ability to prevent excess fuel from dumping into the cylinders and washing the oil of my cylinder walls and bearings.
Fuel atomization: Carb vs. EFI
