Are 'self tuning' features a scam?

Can Holley’s Sniper 2 EFI system really tune your engine without touching a laptop?

We put this all-in-one throttle body EFI solution to the test on our 1966 C10 with a small-block Chevy 350. With injectors, ECU, and most sensors packed into a carburettor-style unit, it’s aimed at enthusiasts who want modern drivability without the complexity of a full multipoint EFI setup.

Find out how well the self-tune feature actually works, what the limitations are, and where a product like this fits in the world of fuel injection conversions. We also cover spark control using the optional HyperSpark distributor, installation tips, and how the Sniper 2 compares to a traditional carburettor and standalone ECU.

Includes dyno results, real-world pros and cons, and whether this plug-and-play option is worth considering for your project.
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TIMESTAMPS:
0:00 – Carb to EFI - Not That Scary
0:10 – Traditional EFI Conversion Pain Points
0:31 – Carb-Style Unit With Built-In ECU and Sensors
0:55 – Why It Suits Our SBC 350-Powered C10
1:05 – Minimal Wiring Required
1:12 – Power Distribution Module (PDM) Option
1:32 – Calibration Wizard and Base Map Setup
1:44 – Self-Tuning Fuel Table Explained
2:01 – Sniper Limitations and TBI Overview
2:43 – Why Multipoint EFI Offers More Control
3:00 – 80% A Perfectly Acceptable Solution
3:22 – Ignition Timing Options
3:46 – HyperSpark Add-On
4:08 – Installation Process and Air Filter Compatibility
4:20 – Fuel System Requirements and Surge Tank Suggestion
4:47 – O2 Sensor and Clamp-On Option
5:13 – Total Install Time and What We Added
5:29 – Calibration Wizard Questions
5:40 – First Start Results and Idle Stability
6:10 – How Auto-Tune Learns Fuel Maps
6:37 – Auto-Tune Dyno Testing and Fueling Accuracy
7:07 – Rich Base Map Challenges at High RPM
7:18 – Final Thoughts on Self-Tuning Results
7:35 – Comparing Carb to Sniper: Hot Start, Drivability, Power
7:45 – Laptop Tuning Option via Tuning Cable
8:01 – Final Verdict
8:15 – Who It’s For and What It’s Not
8:30 – DIY-Friendly and Upgrade Path
9:01 – Tune Your Own Holley Sniper