Nice bottom end torque!
It went from 600 cfm to 900 cfm, added about 12 cubic inches to the plenum and increased it's length and volume with the crossover effect. Gaining about 25 fl tbs of torque across the curve could be from that alone You would possibly get very similar results with a properly tuned carb and a spacer.
A carb setup that is tuned right will make all but exactly the same power curves as a efi setup of the same cfm. Yes, efi will drive better with less work. That's a no brainier.
The biggest advantages of the Sniper system is obviously cost versus buying a 900 cfm carb. You don't need a box of jets, multiple O2 sensors, time, etc, to tune it. The downfalls are that no carb ever suffered from EMI issues. Every standalone TBI system I have ever worked with can turn into an EMI nightmare. And that may appear during or after the install. Bad diode in the alt, bad wire, plug gap, wiring for TBI to close to something, etc.
TBI injection systems are also not very good with cams with a rough idle . TBI and overlap don't go together real well at all, and that should be mentioned in any comparison. Driveability with throttle body injection and lots of overlap isn't going to be the best till after the rpm smooths out the vacuum and the runner speeds. The combination of changing vacuum and port stall will wreck havoc on the low rpm fuel mixture with a big cam.
If you have or plan on going with a big cam, use a port injection system that is designed to transition from speed density to closed loop. You can put together a self tuning port injection system for about the same price as well. But it is a bit more work that bolting it on and 5 wires, lol….
If you have a cam that idles with steady vacuum, a TBI system is a no brainier. It is going to run good basically all the time. Other than changing the fuel filter every few years, it will take care of itself for the most part.
Add timing control to it… lol
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