Review on 🚗 Holley Sniper EFI Self-Tuning Master Kit - 550-511K by Marcus West

Choose this system after reading many reviews about this system and other systems. The system wasn't very difficult to install, but it did require decent mechanical skills. The hardest part was the return line to the gas tank. Even with self-optimization, your motor should run very well. I installed it, it requires a bit of setup and tweaking after installation. I had to call Holly for tech support and they were very helpful. My car has never worked so well. my engine runs very differently now, much better than if it was installed. I'm still in the process of tweaking some minor issues that require a little EFi knowledge which you can get from Holly. very responsive and great for the street. If you want real drag racing I would probably go for a much better system. I've had 3 other regular carbs that never worked the way this system did. Overall I'm very happy with the system and glad I bought it.