Many resales of the Holley (Sniper) & other aftermarket Fuel Injection Systems

I love EFI. I've used the Terminator X and Dominator X systems. About to put a Terminator X on the BGE I'm building. It's a generation thing. I grew up with a laptop in my face, so it was an easy transition. But in saying that, the engine is only going to do what you tell it to do with EFI. No more, no less. It can be unforgiving.

The Sniper has a decent self-learn feature that will get you 90% of the way there. It's fine for most guys. But if you're racing or adding forced induction it gets much more complicated. If you truly understand motors and what they want/need to run optimally, you can learn how to tune. The concepts are very similar - just the vernacular is different.

Proper grounding and understanding which sensors/wires need cranking vs constant 12v is critical. If you have improper grounds and/or a bunch of electrical interference it will cause havoc with your tuning. Devin Vanderhoof has a great series on YouTube about it.

Overall, I'd say if you want to challenge yourself and learn new skills - give tuning an EFI a chance. But if you're building a cruiser, just stick with a carb or get the Sniper and use the self-learn. Just depends on what your goals are.